Hayfever plants
Subtitle: their appearance, distribution, time of flowering, and their role in hayfever
By: by Roger P. Wodehouse.
Edition: 2d rev. ed.
Publisher: Hafner Pub. Co.
Published: 1971
Place of publication: New York
Language: eng
Number of pages: 280
Subjects: Hay-fever plants -- North America.
Notes: Bibliography: p. [253]-268.