APA استشهاد

Ash Croft, G. L., & Hanks, R. J. (1980). Applied soil physics. Springer Verlag.

استشهاد بنمط شيكاغو

Ash Croft, G L., و R J. Hanks. Applied Soil Physics. New York: Springer Verlag, 1980.

MLA استشهاد

Ash Croft, G L., و R J. Hanks. Applied Soil Physics. Springer Verlag, 1980.