Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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