@mastersthesis {,
	title = {El Periodo Precer{\'a}mico de la Cueva de Quelkata},
	year = {1978},
	pages = {72},
	school = {Universidad Catolica Santa Maria},
	type = {Bachiller},
	address = {Arequipa, Per{\'u}},
	author = {Ch{\'a}vez, Jos{\'e} Antonio}
}