@book{54629,
	author = {Trujillo Arriaga, Francisco Javier.},
	title = {The agroecology of maize production in Tlaxcala, México.},
	publisher = {The Author,},
	year = {1987.},
	address = {Barkeley, Ca. :},
	note = {Theses (Doctor of Phylosophy in Entomology) -- Univ. of California. Graduate Division}
}