APA (7th ed.) Citation

Wideman, C. J., & Gehlen, R. (1949). The biological world. Loyola University Press.

Chicago Style (17th ed.) Citation

Wideman, Charles J., and Raphaelis Gehlen. The Biological World. Chicago: Loyola University Press, 1949.

MLA (9th ed.) Citation

Wideman, Charles J., and Raphaelis Gehlen. The Biological World. Loyola University Press, 1949.

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