APA ציטוט

Harlan, J. R. (1956). Theory and dynamics of grassland agriculture. Princeton, N. J.: D. Van Nostrand Company.

Trích dẫn kiểu Chicago

Harlan, Jack R. Theory and Dynamics of Grassland Agriculture. Princeton, N. J.: D. Van Nostrand Company, 1956.

ציטוט MLA

Harlan, Jack R. Theory and Dynamics of Grassland Agriculture. Princeton, N. J.: D. Van Nostrand Company, 1956.