Carbon dioxide levels in railcars and their effect on lettuce
By: [by J.K. Steward ... et al.].
Series: Marketing research report -- no. 937
Publisher: U.S. Dept. of Agriculture, Agricultural Research Service
Published: 1972
Place of publication: Washington, D.C
Language: eng
Number of pages: 11
Subjects: Lettuce; Transportation
Notes: Cover title.

Includes bibliographical references.