APA (7th ed.) Citation

Pearce, F., & Puddifoot, A. (2008). Earth then and now: Amazing images of our changing world. Firefly Books.

Chicago Style (17th ed.) Citation

Pearce, Fred, and Andrew Puddifoot. Earth Then and Now: Amazing Images of Our Changing World. Buffalo, N.Y.: Firefly Books, 2008.

MLA (8th ed.) Citation

Pearce, Fred, and Andrew Puddifoot. Earth Then and Now: Amazing Images of Our Changing World. Firefly Books, 2008.

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