@PROCEEDINGS {EZUMAH:1978a,
title = {Some Notes on the Mealybug, P.Manihoti Incidence on Manioc Manihot esculenta in Bas Zaire},
author = {Ezumah, H. C. and Knight, A. },
booktitle = {International Workshop on the Cassava Mealybug},
year = {1978},
}