@BOOK {SCHULZ:2001a,
title = {Participation des agriculteurs a la recherche et au developpement; techniques de recensement at de resolution de problemes: Guide de recherche de l'Iita, No. 57},
author = {Schulz, S. },
series = {Guide de recherche de l'Iita, No. 57},
year = {2001},
publisher = {International Institute of Tropical Agriculture (IITA)},
address = {Ibadan, Nigeria},
isbn = {978-131-188-6},
note = {25p.},
}