Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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