@BOOK {CARSKY:1992a,
title = {Effect of toposequence position on performance of rice varieties in inland valleys of West Africa: RCMP Research monograph, No. 9},
author = {Carsky, R. and Masajo, T. M. },
series = {RCMP Research monograph, No. 9},
year = {1992},
publisher = {International Institute of Tropical Agriculture (IITA)},
address = {Ibadan, Nigeria},
}