Cita APA

Walsh, L. M. 1., & Beaton, J. B. (1973). Soil testing and plant analysis. Madison: Soil Science Society of America.

Citación estilo Chicago

Walsh, Leo Marcellus 1931-, y James B. Beaton. Soil Testing and Plant Analysis. Madison: Soil Science Society of America, 1973.

Cita MLA

Walsh, Leo Marcellus 1931-, y James B. Beaton. Soil Testing and Plant Analysis. Madison: Soil Science Society of America, 1973.