Powelson, Mary L. books & textbook
Potato Health Management (Plant Health Management)
Johnson, Dennis A. Powelson, Mary L. Rowe, Randall C. Stevenson, Walter R. Thornton, Robert E.
Amer Phytopathological Society /2007-11-15 Paperback / 261 Pages
isbn-10: 0890543534 / isbn-13: 9780890543535
