@BOOK {RHOADES:1992a,
title = {L'art de mener des enquetes informelles sur le terrain: Guide de recherche de l'Iita, No. 36},
author = {Rhoades, R. E. },
series = {Guide de recherche de l'Iita, No. 36},
year = {1992},
month = {August},
publisher = {International Institute of Tropical Agriculture (IITA)},
address = {Ibadan, Nigeria},
note = {66p.},
}