@BOOK {CLAASSEN:1995b,
title = {Les semoirs dans les fermes agricoles experimentales: Guide de recherche de l'Iita, No. 13},
author = {Claassen, S. L. },
series = {Guide de recherche de l'Iita, No. 13},
year = {1995},
month = {March},
publisher = {International Institute of Tropical Agriculture (IITA)},
address = {Ibadan, Nigeria},
note = {34p.},
}