@book{251283,
	author = {Escuela Nacional de Agricultura, Colegio de Postgraduados},
	title = {Primera Plana : Escuela Nacional de Agricultura},
	publisher = {Escuela Nacional de Agricultura, Colegio de Postgraduados},
	year = {1975},
	address = {Chapingo},
	note = {-Existencias: 1975 no. 75-88, 90-92, 94-108, 110-115; 1976 no. 116-141, 143-158; 1977 no. 159-162, 167-183; 1978 no. 184-191, 193-199; 1979 no. 201, 203, 205, 210-211, 213.}
}