Shipments to the United States
Due to changes in U.S. customs regulations, all shipments to the United States are now subject to customs clearance.
This means that the recipient will be required to pay customs duties, as well as any applicable taxes and fees upon import.
Please also note that delivery may be delayed while the shipment is being processed by U.S. customs.
![Cover for John N. Maina · Current Perspectives on the Functional Design of the Avian Respiratory System - Zoological Monographs (Paperback Book) [2023 edition] (2024)](https://imusic.b-cdn.net/images/item/original/822/9783031351822.jpg?john-n-maina-2024-current-perspectives-on-the-functional-design-of-the-avian-respiratory-system-zoological-monographs-paperback-book&class=scaled&v=1759174482)
![Cover for John N. Maina · Current Perspectives on the Functional Design of the Avian Respiratory System - Zoological Monographs (Hardcover Book) [2023 edition] (2023)](https://imusic.b-cdn.net/images/item/original/792/9783031351792.jpg?john-n-maina-2023-current-perspectives-on-the-functional-design-of-the-avian-respiratory-system-zoological-monographs-hardcover-book&class=scaled&v=1694209985)
![Cover for John N. Maina · Bioengineering Aspects in the Design of Gas Exchangers: Comparative Evolutionary, Morphological, Functional, and Molecular Perspectives (Paperback Book) [2011 edition] (2014)](https://imusic.b-cdn.net/images/item/original/332/9783642441332.jpg?john-n-maina-2014-bioengineering-aspects-in-the-design-of-gas-exchangers-comparative-evolutionary-morphological-functional-and-molecular-perspectives-paperback-book&class=scaled&v=1608800944)
![Cover for John N. Maina · The Gas Exchangers: Structure, Function, and Evolution of the Respiratory Processes - Zoophysiology (Paperback Book) [Softcover reprint of the original 1st ed. 1998 edition] (2012)](https://imusic.b-cdn.net/images/item/original/568/9783642637568.jpg?john-n-maina-2012-the-gas-exchangers-structure-function-and-evolution-of-the-respiratory-processes-zoophysiology-paperback-book&class=scaled&v=1408510635)
![Cover for John N. Maina · The Lung-Air Sac System of Birds: Development, Structure, and Function (Paperback Book) [Softcover reprint of hardcover 1st ed. 2005 edition] (2010)](https://imusic.b-cdn.net/images/item/original/019/9783642065019.jpg?john-n-maina-2010-the-lung-air-sac-system-of-birds-development-structure-and-function-paperback-book&class=scaled&v=1408463403)
![Cover for John N. Maina · The Lung-Air Sac System of Birds: Development, Structure, and Function (Hardcover Book) [2005 edition] (2005)](https://imusic.b-cdn.net/images/item/original/956/9783540255956.jpg?john-n-maina-2005-the-lung-air-sac-system-of-birds-development-structure-and-function-hardcover-book&class=scaled&v=1625024658)