Butter as a source of vitamin A in the diet of the people of the United States
By: by the technical committee in charge of the nation-wide survey, U.S. Dept. of Agriculture, Agricultural Research Administration, Bureau of Dairy Industry and Office of Experiment Stations.
Contributors: United States. Bureau of Dairy Industry.; United States. Office of Experiment Stations.
Series: Miscellaneous publication / United States Department of Agriculture -- no. 636; Miscellaneous publication (United States. Dept. of Agriculture) -- no. 636.
Publisher: U.S. Dept. of Agriculture
Published: 1947
Place of publication: Washington, D.C
Language: eng
Number of pages: 47
Subjects: Butter -- Analysis.; Vitamin A.; Diet -- United States.
Notes: Cover title.

"Issued November 1947."

"In cooperation with the agricultural experiment stations of Alabama, Arizona, California, Idaho, Indiana, Iowa, Kansas, Louisiana, Maryland, Minnesota, Mississippi, Montana, Nebraska, New York (Cornell), North Carolina, Ohio, Oregon, Pennsylvania, Washington, Wisconsin, and Wyoming."

Bibliography: p. 46-47.