Cita APA (7a ed.)

Bidwell, P. W. (1925). History of agriculture in the northern United States 1620-1860. Carnegie Inst..

Cita Chicago Style (17a ed.)

Bidwell, Percy Wells. History of Agriculture in the Northern United States 1620-1860. Washington: Carnegie Inst., 1925.

Cita MLA (9a ed.)

Bidwell, Percy Wells. History of Agriculture in the Northern United States 1620-1860. Carnegie Inst., 1925.