APA (7th ed.) Citation

Chiu, A. K., & Zapp, Z. When free air is not under the diaphragm. Elsevier.

Chicago Style (17th ed.) Citation

Chiu, Andrew K., and Zinta Zapp. When Free Air Is Not Under the Diaphragm. Elsevier.

MLA (9th ed.) Citation

Chiu, Andrew K., and Zinta Zapp. When Free Air Is Not Under the Diaphragm. Elsevier.

Warning: These citations may not always be 100% accurate.