@book{47413,
	author = {Reyes C., Pedro. and Wellhausen, Edwin John.},
	title = {Maíz híbrido para tierra caliente, Rocamex H-501, H-502 y H-503},
	publisher = {Secretaría de Agricultura y Ganadería,},
	year = {1955},
	series = {Folleto de divulgación},
	address = {México, D. F. :}
}