Home › Authors › W. C. (William Cowperthwaite) Snyder 👤 W. C. (William Cowperthwaite) Snyder 2 books Books by W. C. (William Cowperthwaite) Snyder Diseases of Lettuce; C448 Diseases of Lettuce; C448 2021 Production in California of Sn Production in California of Snap-Bean Seed Free from Blight and Anthracnose; B689 2021