Genetic relations of some color factors in lettuce
By: by Ross C. Thompson.
Contributors: United States. Dept. of Agriculture.
Series: Technical bulletin / United States Department of Agriculture -- no. 620; Technical bulletin (United States. Dept. of Agriculture) -- no. 620.
Publisher: U.S. Dept. of Agriculture
Published: 1938
Place of publication: Washington
Language: eng
Number of pages: 38
Subjects: Lettuce.; Plants -- Color.
Notes: Caption title.

Literature cited: p. 36-37.