Style de citation APA

Ferris, V. R., & Ferris, J. M. (1989). Why ecologists need systematics: Importance of systematics to ecological research. Journal of nematology, 21(3), 308.

Style de citation Chicago

Ferris, V R., et J M. Ferris. "Why Ecologists Need Systematics: Importance of Systematics to Ecological Research." Journal of Nematology 21, no. 3 (1989): 308.

Style de citation MLA

Ferris, V R., et J M. Ferris. "Why Ecologists Need Systematics: Importance of Systematics to Ecological Research." Journal of Nematology, vol. 21, no. 3, 1989, p. 308.