Boerner, E. G. (1920). Handbook, Official Grain Standards for wheat, shelled corn and oats: Compiled by E. G. Boerner. Government Printing Office.
Chicago-Zitierstil (17. Ausg.)Boerner, E. G. Handbook, Official Grain Standards for Wheat, Shelled Corn and Oats: Compiled by E. G. Boerner. Washington: Government Printing Office, 1920.
MLA-Zitierstil (9. Ausg.)Boerner, E. G. Handbook, Official Grain Standards for Wheat, Shelled Corn and Oats: Compiled by E. G. Boerner. Government Printing Office, 1920.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.