APA citiranje

Herridge, D. F., Bergersen, F. J., & Peoples, M. B. (1990). Measurement of Nitrogen Fixation by Soybean in the Field Using the Ureide and Natural (15)N Abundance Methods.

Citação norma Chicago

Herridge, David F., Fraser J. Bergersen, and Mark B. Peoples. Measurement of Nitrogen Fixation By Soybean in the Field Using the Ureide and Natural (15)N Abundance Methods. 1990.

MLA citiranje

Herridge, David F., Fraser J. Bergersen, and Mark B. Peoples. Measurement of Nitrogen Fixation By Soybean in the Field Using the Ureide and Natural (15)N Abundance Methods. 1990.