Cita APA

Wischmeier, W. H., & Smith, D. D. (1978). Predicting rainfall erosion losses: A guide to conservation planning (1.). [S.l.]: Washington : U.S. Dept. of Agriculture.

Citación estilo Chicago

Wischmeier, Walter H., y Dwight D. Smith. Predicting Rainfall Erosion Losses: A Guide to Conservation Planning. 1. [S.l.]: Washington : U.S. Dept. of Agriculture, 1978.

Cita MLA

Wischmeier, Walter H., y Dwight D. Smith. Predicting Rainfall Erosion Losses: A Guide to Conservation Planning. 1. [S.l.]: Washington : U.S. Dept. of Agriculture, 1978.