APA citiranje

Tollner, E. W. (2002). Natural resources engineering. Iowa: Iowa State Press.

Trích dẫn kiểu Chicago

Tollner, Ernest W. Natural Resources Engineering. Iowa: Iowa State Press, 2002.

MLA citiranje

Tollner, Ernest W. Natural Resources Engineering. Iowa: Iowa State Press, 2002.

Opozorilo: Ti citati niso vedno 100% točni.