DeBach, P., & Rosen, D. 1976 Armoured scale insects.. Studies in Biological Control. (International Biological Programme, No. 9). Cambridge University Press Cambridge, England
Notes: Description of the IBP project on biological control of scale insects; history of biological control; review of natural enemies; effects of climate; review of international experiments; extensive list of introductions of natural enemies from numerous countries; census list of principal armoured scale insect pests of the world with a list of their enemies.