Brower, J. E., Zar, J. H., & Ende, C. v. (1998). Field and laboratory methods for general ecology (4th ed.). WCB McGraw-Hill.
Cita Chicago (17th ed.)Brower, James E., Jerrold H. Zar, i Carl von Ende. Field and Laboratory Methods for General Ecology. 4th ed. Boston, Mass: WCB McGraw-Hill, 1998.
Cita MLA (9th ed.)Brower, James E., et al. Field and Laboratory Methods for General Ecology. 4th ed. WCB McGraw-Hill, 1998.
Atenció: Aquestes cites poden no estar 100% correctes.