Παραπομπή APA

Kuhnelt, W. (1976). Soil biology with special reference to the animal kingdom.

Παραπομπή Chicago Style

Kuhnelt, Wilhelm. Soil Biology with Special Reference to the Animal Kingdom. Faber & Faber Ltd., London, 1976.

Παραπομπή MLA

Kuhnelt, Wilhelm. Soil Biology with Special Reference to the Animal Kingdom. 1976.