@BOOK {COUPER:1994,
title = {Land clearing for agricultural research stations: IITA research guide, No. 5},
author = {Couper, D. C. },
series = {IITA research guide, No. 5},
year = {1994},
month = {March},
publisher = {International Institute of Tropical Agriculture (IITA)},
address = {Ibadan, Nigeria},
note = {17p.},
}