Style de citation APA

Cho, M. R., & Robbins, R. T. (1991). Morphological Variation among 23 Xiphinema americanum Populations. Journal of nematology, 23(1), 134.

Style de citation Chicago

Cho, M R., et R T. Robbins. "Morphological Variation Among 23 Xiphinema Americanum Populations." Journal of Nematology 23, no. 1 (1991): 134.

Style de citation MLA

Cho, M R., et R T. Robbins. "Morphological Variation Among 23 Xiphinema Americanum Populations." Journal of Nematology, vol. 23, no. 1, 1991, p. 134.