Hamilton, D.W. 1967 Injurious and beneficial insects in coffee plantations of Costa Rica and Guatamala, 1964. Journal of Economic Entomology 60:1409-1413
Hamilton, D.W. 1967 Injurious and beneficial insects in coffee plantations of Costa Rica and Guatamala, 1964. Journal of Economic Entomology 60:1409-1413