Physiologic races of Puccinia graminis in the United States in 1955
By: D.M. Stewart ... [et al.].
Contributors: United States. Plant Disease Epidemics and Identification Section
Series: Plant disease reporter -- suppl. 239; Plant disease reporter -- suppl. 239.
Publisher: Plant Disease Epidemics and Identification Section, Agricultural Research Service, United States Department of Agriculture
Published: 1956
Place of publication: Beltsville, Md
Language: eng
Number of pages: 105
Subjects: Puccinia graminis
Notes: Caption title.

"July 15, 1956."