Schraer, W. D., & Stoltze, H. J. (1995). Biology: The study of life (6th ed.). Prentice Hall.
Cita Chicago (17th ed.)Schraer, William D., i Herbert J. Stoltze. Biology: The Study of Life. 6th ed. Needham, Mass: Prentice Hall, 1995.
Cita MLA (9th ed.)Schraer, William D., i Herbert J. Stoltze. Biology: The Study of Life. 6th ed. Prentice Hall, 1995.
Atenció: Aquestes cites poden no estar 100% correctes.