APA-Zitierstil (7. Ausg.)

Não informado. AERR. University of Illinois at Urbana-Champaign, Agricultural Experiment Station.

Chicago-Zitierstil (17. Ausg.)

Não informado. AERR. Urbana, Ill: University of Illinois at Urbana-Champaign, Agricultural Experiment Station.

MLA-Zitierstil (8. Ausg.)

Não informado. AERR. University of Illinois at Urbana-Champaign, Agricultural Experiment Station.

Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.