Morse, Roger A. Honey bee pests, predators, and diseases - 2 ed. - Ithaca, N.Y. : Cornell University, 1990 - 474 p. : ilus. LCCN: 40592 Subjects--Topical Terms: Abejas--Enfermedades.Abejas--ParĂ¡sitos.Abejas--Plagas. Dewey Class. No.: 595.799 / M67 1990