APA

Tobin A. J., Morel R. E., .Asking About Cells. London: Saunders College Publishing.

Chicago

Tobin Allan J, Morel Richard E, .Asking About Cells. London: Saunders College Publishing.

Harvard

Tobin A. J., Morel R. E., .Asking About Cells. London: Saunders College Publishing.

MLA

Tobin Allan J, Morel Richard E, .London: Saunders College Publishing. .