Gaya APA

Pfeiffer, W, B., Voegele, W, O. (1965). The correct maid for hotels and motels . Rochelle Park, New Jersey: Hayden Book Company, Inc..

Gaya MLA

Pfeiffer, William, B.., Voegele, Walter, O.. "The correct maid for hotels and motels". Rochelle Park, New Jersey: Hayden Book Company, Inc., 1965. BUKU.