APA ציטוט

Kohnke, H. (1968). Soil physics. Tata mc graw - hill publishing company limited.

Chicago Edition Citation

Kohnke, Helmut. Soil Physics. Newdelhi: Tata mc graw - hill publishing company limited, 1968.

ציטוט MLA

Kohnke, Helmut. Soil Physics. Tata mc graw - hill publishing company limited, 1968.