@BOOK {WEBER:1995b, title = {Weeds in intensive cereal-based cropping systems of the Northern Guinea Savanna: RCMP Research monograph, No. 20}, author = {Weber, G. and Elemo, K. A. * and Lagoke, S. T. O. *}, series = {RCMP Research monograph, No. 20}, year = {1995}, publisher = {International Institute of Tropical Agriculture (IITA)}, address = {Ibadan, Nigeria}, note = {28p.}, }