Cita APA

Kaskel, A., Daniel, L., & Hummer, P. J. (1999). Biology: An everyday experience. New York: McGraw-Hill.

Chicago Style Citation

Kaskel, Albert, Lucy Daniel, i Paul J. Hummer. Biology: An Everyday Experience. New York: McGraw-Hill, 1999.

Cita MLA

Kaskel, Albert, Lucy Daniel, i Paul J. Hummer. Biology: An Everyday Experience. New York: McGraw-Hill, 1999.