Cita APA (7a ed.)
Curtis, H., & Barnes, N. S. (1981). Study guide to accompany invitation to biology (3a ed.). Worth Publishers.
Cita Chicago Style (17a ed.)
Curtis, Helena, y N. Sue Barnes. Study Guide to Accompany Invitation to Biology. 3a ed. New York: Worth Publishers, 1981.
Cita MLA (9a ed.)
Curtis, Helena, y N. Sue Barnes. Study Guide to Accompany Invitation to Biology. 3a ed. Worth Publishers, 1981.
Precaución: Estas citas no son 100% exactas.