Cita APA

Tobin, A. J., & Morel, R. E. (1997). Asking about cells. Saunders College Publishing.

Citación estilo Chicago

Tobin, Allan J., y Richard E. Morel. Asking About Cells. Fort Worth: Saunders College Publishing, 1997.

Cita MLA

Tobin, Allan J., y Richard E. Morel. Asking About Cells. Saunders College Publishing, 1997.