Enriquez, M. R. (1976). Problems and services in a crisis counseling center [microform]. Photoduplication Service. University of the Philippines Library.
Citazione stile Chigago Style (17a edizione)Enriquez, Mary Rosalie. Problems and Services in a Crisis Counseling Center [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1976.
Citatione MLA (9a ed.)Enriquez, Mary Rosalie. Problems and Services in a Crisis Counseling Center [microform]. Photoduplication Service. University of the Philippines Library, 1976.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.