Pimm, S. L. (1982). Food webs. Chapman and Hall.
Cita Chicago (17th ed.)Pimm, Stuart L. Food Webs. New York, N. Y: Chapman and Hall, 1982.
Cita MLA (9th ed.)Pimm, Stuart L. Food Webs. Chapman and Hall, 1982.
Atenció: Aquestes cites poden no estar 100% correctes.