@book{343640,
	author = {Suarez de Castro, F. and IICA, San Jose (Costa Rica)},
	title = {Conservacion de suelos},
	year = {1979. },
	address = {San Jose (Costa Rica): },
	edition = {3. ed.},
	note = {IICA; Several bibliographies; 46 tables; 144 illus.}
}