Cita APA

Scharaer, W., & Noelle, R. C. (1982). A learning program for biology (2a ed.). Massachusetts: CEBCO.

Citación estilo Chicago

Scharaer, W., y R. C. Noelle. A Learning Program for Biology. 2a ed. Massachusetts: CEBCO, 1982.

Cita MLA

Scharaer, W., y R. C. Noelle. A Learning Program for Biology. 2a ed. Massachusetts: CEBCO, 1982.