@INBOOK {OKIGBO:1978h, title = {Grain legumes in the agriculture of the tropics}, author = {Okigbo, B. }, year = {1978}, type = {In: Pest of grain legumes: ecology and control}, pages = {1--11}, publisher = {Academic Press}, address = {London, New York}, isbn = {0-12-646350-6}, note = {In: Pest of grain legumes: ecology and control}, }