Cita APA (7th ed.)

Solomon, E. P. (1993). Biology (4th.ed.). Saunders college.

Cita Chicago (17th ed.)

Solomon, Eldra Pearl. Biology. 4th.ed. Philadelphia: Saunders college, 1993.

Cita MLA (9th ed.)

Solomon, Eldra Pearl. Biology. 4th.ed. Saunders college, 1993.