Woodruff, A. M. The farm and the city in the great plains. Lincoln: Lincoln Institute of Land Policy.
Παραπομπή Chicago StyleWoodruff, Archibald M. The Farm and the City in the Great Plains. Lincoln: Lincoln Institute of Land Policy.
Παραπομπή MLAWoodruff, Archibald M. The Farm and the City in the Great Plains. Lincoln: Lincoln Institute of Land Policy.
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