Cita APA (7a ed.)

Hainsworth, R. G. (1949). A graphic summary of world agriculture. Office of Foreign Agricultural Relations.

Cita Chicago Style (17a ed.)

Hainsworth, Reginald G. A Graphic Summary of World Agriculture. Washington: Office of Foreign Agricultural Relations, 1949.

Cita MLA (8a ed.)

Hainsworth, Reginald G. A Graphic Summary of World Agriculture. Office of Foreign Agricultural Relations, 1949.