New crop cultivars. - Washington : U.S. Department of Agriculture ; 1977 - 211p. ; 27 cm. - United States. Federal Extension Service. ESC 584 .

ESC-584(1970-76)

Subjects--Topical Terms:
Field crops --United States.
Field crops --Varieties.
Field crops

Dewey Class. No.: US 633 / Un 31(no.13/1970-76)