American varieties of lettuce
Contributors: Tracy, W. W., Jr.
Series: Botanical Investigations and Experiments Doc. No. 61; Plant Industry Bur. Bull. No. 69; Plant Industry Bur. Doc. No. 121
Publisher: U.S. G.P.O.
Published: 1904
Place of publication: [Washington, D.C.]
Format: Microform
Subjects: Lettuce.