McMillan, R. T. (1949). A study of farms in Oklahoma by size and economic class. Oklahoma Agricultural Experiment Station.
Chicago-Zitierstil (17. Ausg.)McMillan, Robert T. A Study of Farms in Oklahoma by Size and Economic Class. Stillwater, Okla: Oklahoma Agricultural Experiment Station, 1949.
MLA-Zitierstil (9. Ausg.)McMillan, Robert T. A Study of Farms in Oklahoma by Size and Economic Class. Oklahoma Agricultural Experiment Station, 1949.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.