Citação norma APA

Pedersen, W. L., Chakrabarty, K., Klucas, R. V., & Vidaver, A. K. (1978). Nitrogen fixation (acetylene reduction) associated with roots of winter wheat and sorghum in Nebraska.

Citação norma Chicago

Pedersen, W L., K. Chakrabarty, R V. Klucas, and A K. Vidaver. Nitrogen Fixation (acetylene Reduction) Associated With Roots of Winter Wheat and Sorghum in Nebraska. 1978.

Citação norma MLA

Pedersen, W L., K. Chakrabarty, R V. Klucas, and A K. Vidaver. Nitrogen Fixation (acetylene Reduction) Associated With Roots of Winter Wheat and Sorghum in Nebraska. 1978.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.