@BOOK {LAL:1983,
title = {No-till farming; soil and water conservation and management in the humid and subhumid tropics: IITA monograph series No. 2},
author = {Lal, R. },
series = {IITA monograph series No. 2},
year = {1983},
publisher = {International Institute of Tropical Agriculture (IITA)},
address = {Ibadan, Nigeria},
note = {64p.},
}