Cita APA

(1920). Annual reports of the Department of Agriculture for the year ended june 30, 1919: Reports in chiefs. Washington: Secretary of Agriculture.

Citación estilo Chicago

Annual Reports of the Department of Agriculture for the Year Ended June 30, 1919: Reports in Chiefs. Washington: Secretary of Agriculture, 1920.

Cita MLA

Annual Reports of the Department of Agriculture for the Year Ended June 30, 1919: Reports in Chiefs. Washington: Secretary of Agriculture, 1920.