@BOOK {MUTSAERS:1991b,
title = {Opportunities for second cropping in southwestern Nigeria; trials and farmer tests with maize, soybeans and cowpeas in Alabata and Ayepe (1985-1989): RCMP research monograph, No. 4},
author = {Mutsaers, H. J. W. },
booktitle = {RCMP research monograph, No. 4},
year = {1991},
publisher = {International Institute of Tropical Agriculture (IITA)},
address = {Ibadan, Nigeria},
note = {29p.},
}