Dyfyniad APA

FESSENDEN, R. J., & FESSENDEN, J. S. (1979). Chemical principles for the life sciences.-- 2 nd ed. Allyn and Bacon.

Dyfyniad Arddull Chicago

FESSENDEN, Ralph J., and Joan S. FESSENDEN. Chemical Principles for the Life Sciences.-- 2 Nd Ed. Boston: Allyn and Bacon, 1979.

Dyfyniad MLA

FESSENDEN, Ralph J., and Joan S. FESSENDEN. Chemical Principles for the Life Sciences.-- 2 Nd Ed. Allyn and Bacon, 1979.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.