Habib, A., Salama, H.S., & Amin, A.H. 1971 Population studies on scale insects infesting citrus trees in Egypt.. Zeitschrift für Angewandte Entomologie 69: 318-330.
Notes: Study of Ceroplastes floridensis, Aonidiella aurantii, Parlatoria oleae, Chrysomphalus ficus and Lepidosaphes beckii.