Hassan, Mahrus Saleh. Studies on the biology of some root aphids in Egypt (Hemiptera-Homoptera: Aphididae) - Cairo, General Organization for Govt. Print. Offices, 1963. - 9 p. illus. 24 cm. LCCN: ne 65000069 Subjects--Topical Terms: Aphids.Insect pests--Egypt. LC Class. No.: SB945.P64 / H3