Ventilation of farm barns
By: by M.A.R. Kelley.
Contributors: United States. Dept. of Agriculture.
Series: Technical bulletin / United States Department of Agriculture -- no. 187; Technical bulletin (United States. Dept. of Agriculture) -- no. 187.
Publisher: U.S. Dept. of Agriculture
Published: 1930
Place of publication: Washington
Language: eng
Number of pages: 75
Subjects: Barns.
Notes: Cover title.

Literature cited: p. 72-74.