Strauss, E., & Lisowski, M. (2000). Biology: The web of life (2nd ed.). Scott, Foresman.
Cita Chicago (17th ed.)Strauss, Eric, i Mrylin Lisowski. Biology: The Web of Life. 2nd ed. Menlo Park, California: Scott, Foresman, 2000.
Cita MLA (9th ed.)Strauss, Eric, i Mrylin Lisowski. Biology: The Web of Life. 2nd ed. Scott, Foresman, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.