APA সাইটেশন

Botkin, D. B., & Keller, E. A. (2014). Environmental science: Earth as a living planet (Ninth edition.). Wiley.

শিকাগো স্টাইলে সাইটেশন

Botkin, Daniel B., এবং Edward A. Keller. Environmental Science: Earth as a Living Planet. Ninth edition. NewJersey: Wiley, 2014.

এমএলএ সাইটেশন

Botkin, Daniel B., এবং Edward A. Keller. Environmental Science: Earth as a Living Planet. Ninth edition. Wiley, 2014.