Aphanomyces species and their root diseases in pea and sugarbeet
Subtitle: a review
By: [by George C. Papavizas and WilliamA. Ayers].
Contributors: Ayers, William A.
Series: Technical bulletin -- No.1485
Publisher: Agricultural Research Service, United States Department of Agriculture
Published: 1974
Place of publication: Washington, D.C
Language: eng
Notes: Cover title.