APA-viite

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

Chicago-tyylinen lähdeviittaus

kohnke, Helmut. Soil Physics. Bombay: Tata mc graw - hill publishing company limited, 1968.

MLA-viite

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