Changes in farm production and efficiency
Subtitle: 1956 summary
Series: ARS -- 43-55; ARS (Series) (United States. Agricultural Research Service) -- 43-55.
Publisher: U.S. Dept. of Agriculture
Published: 1957
Place of publication: Washington, D.C
Language: eng
Number of pages: 45
Subjects: Agricultural productivity; Statistics; Agriculture
Notes: Cover title.

"August 1957."

Chiefly tables.

Includes bibliographical references.