G. Cuperus

Who is responsible for grain quality?
Cuperus, G., and V.A. Krischik. 1992. “Who Is Responsible for Grain Quality?”. In V. A. Krischik, G. Cuperus, D. Galliart, and M. Stone-Cooper (eds.). Management of Grain, Bulk Commodities, and Bagged Products, 5-6. Oklahoma State University.
Why stored product integrated pest management is needed
Cuperus, G., and V.A. Krischik. 1992. “Why Stored Product Integrated Pest Management Is Needed”. In V. A. Krischik, G. Cuperus, D. Galliart, and M. Stone-Cooper (eds.). Management of Grain, Bulk Commodities, and Bagged Products, 181-82. Oklahoma State University.
Preface
Krischik, V.A., D. Galliart, and G. Cuperus. 1992. “Preface”. In V. A. Krischik, G. Cuperus, D. Galliart, and M. Stone-Cooper (eds.). Management of Grain, Bulk Commodities, and Bagged Products, 3. Oklahoma State University.