APA (7th ed.) Citation

Blashfield, J. F., & Black, W. B. (1991). Global warming. Childrens Press.

Chicago Style (17th ed.) Citation

Blashfield, Jean F., and Wallace B. Black. Global Warming. Chicago: Childrens Press, 1991.

MLA (9th ed.) Citation

Blashfield, Jean F., and Wallace B. Black. Global Warming. Childrens Press, 1991.

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