Recent studies on virus diseases of apple in the United States and Canada
Series: Plant disease reporter -- suppl. 254; Plant disease reporter -- suppl. 254.
Publisher: Crops Research Division, Agricultural Research Service, United States Department of Agriculture
Published: 1959
Place of publication: Beltsville, Md
Language: eng
Number of pages: 36
Subjects: Virus diseases of plants; Apples; Diseases and pests
Notes: Caption title.

"February 15, 1959."

Includes bibliographical references.