Cita APA (7a ed.)

Harlan, J. R. (1956). Theory and dynamics of grassland agriculture. Van Nostrand.

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

Harlan, Jack R. Theory and Dynamics of Grassland Agriculture. Van Nostrand, 1956.