APA引文

Howell, C. H. (2016). Reptiles & amphibians. National Geographic.

Chicago Style (17th ed.) Citation

Howell, Catherine Herbert. Reptiles & Amphibians. Washington, D.C.: National Geographic, 2016.

MLA引文

Howell, Catherine Herbert. Reptiles & Amphibians. National Geographic, 2016.

警告：這些引文格式不一定是100％准確.