Dyfyniad APA

Schraer, W. D., & Stoltze, H. J. (1995). Biology: The study of life (6th ed.). Prentice Hall.

Dyfyniad Arddull Chicago

Schraer, William D., and Herbert J. Stoltze. Biology: The Study of Life. 6th ed. Needham, Mass: Prentice Hall, 1995.

Dyfyniad MLA

Schraer, William D., and Herbert J. Stoltze. Biology: The Study of Life. 6th ed. Prentice Hall, 1995.

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