Part 1 : procedure for determination of performance by aerial photograph [to insure crop acreages, land use, and soil-building practices carried out under soil conservation program].

Bibliographic Details

Corporate Author:	United States. Agricultural Adjustment Administration
Format:	Government Document eBook
Language:	English
Published:	[Washington] : [s.n.], 1939.
Subjects:	Soil conservation. Photography. Agricultural productivity. Land use.
Online Access:	Electronic resource (PDF)