@book{147484,
	author = {Himmerich y Valencia, Robert},
	title = {The encomenderos of New Spain, 1521-1555},
	publisher = {University of Texas Press},
	year = {1991.},
	address = {Austin},
	edition = {1st ed.},
	note = {Originally presented as the author's thesis (Ph. D.)--University of California, Los Angeles, 1984.}
}