Wallace, B., & Simmons, G. M. (1987). Biology for Living. The Johns Hopkins Universite Press.
Cita Chicago Style (17a ed.)Wallace, Bruce, y George M. Simmons. Biology for Living. Baltimore, Maryland: The Johns Hopkins Universite Press, 1987.
Cita MLA (9a ed.)Wallace, Bruce, y George M. Simmons. Biology for Living. The Johns Hopkins Universite Press, 1987.
Precaución: Estas citas no son 100% exactas.