Curtis, H., & Barnes, N. S. (1994). Invitation to Biology (5th.ed.). Worth.
Citación estilo ChicagoCurtis, Helena, and N. Sue Barnes. Invitation to Biology. 5th.ed. New York: Worth, 1994.
Cita MLACurtis, Helena, and N. Sue Barnes. Invitation to Biology. 5th.ed. Worth, 1994.
Warning: These citations may not always be 100% accurate.