Lettuce mosaic
By: [Arlen D. Davison].
Series: Plant diseases; Extension mimeo -- 3336.; Extension mimeo (Washington State University. Cooperative Extension) -- 3336.
Publisher: Cooperative Extension Service, College of Agriculture, Washington State University
Published: 1970
Place of publication: Pullman
Language: eng
Notes: Caption title.

"January 1970."

"E.M. 3336."