APA Citation

Atwater, R., Atwater, F., & Williams, K. (1993). Mr. Popper's penguins : a pop-up book / by Richard and Florence Atwater ; [illustrated by Karin Williams]: A pop-up book / by Richard and Florence Atwater ; [illustrated by Karin Williams]. New York: Little, Brown.

Chicago Style Citation

Atwater, Richard., Florence Atwater, and Karin Williams. Mr. Popper's Penguins : A Pop-up Book / By Richard and Florence Atwater ; [illustrated By Karin Williams]: A Pop-up Book / By Richard and Florence Atwater ; [illustrated By Karin Williams]. New York: Little, Brown, 1993.

MLA Citation

Atwater, Richard., Florence Atwater, and Karin Williams. Mr. Popper's Penguins : A Pop-up Book / By Richard and Florence Atwater ; [illustrated By Karin Williams]: A Pop-up Book / By Richard and Florence Atwater ; [illustrated By Karin Williams]. New York: Little, Brown, 1993.

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