Cita APA

Birkeland, P. W. (1999). Soil and geomorphology. U.pr..

Citación estilo Chicago

Birkeland, Peter W. Soil and Geomorphology. Oxford: U.pr., 1999.

Cita MLA

Birkeland, Peter W. Soil and Geomorphology. U.pr., 1999.

Warning: These citations may not always be 100% accurate.