APA (7th ed.) Zitazioa

LEEPER, G. (1964). Introduction to soil science.: G.W. Leeper. Melbourne Univ. Pr..

Chicago Style (17th ed.) Zitazioa

LEEPER, G.W. Introduction to Soil Science.: G.W. Leeper. London: Melbourne Univ. Pr., 1964.

MLA (9th ed.) Zitazioa

LEEPER, G.W. Introduction to Soil Science.: G.W. Leeper. Melbourne Univ. Pr., 1964.