Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

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