1.		Housekeeping for Hotels, Motels, Hospitals, Clubs, Schools / Grace H. Brigham Autor: Brigham, Grace H. Data Publicação: 1962
2.		Floors : Selections and Maintenance / Bernard Berkeley Autor: Berkeley, Bernard Data Publicação: 1968
3.		Der Hotelier Schreibt dem Gast : 60 Briefe in 5 Sprachen = The Hotelier Corresponds with his Guest: 60 Letters in Five Languages = L´Hôtelier Écrit à Son Client: 60 Letters en Conq Langues = L´Albergatore Scrive al Cliente: 60 Lettere in Cinq Lingue = El Hotelero Scribe al Huésped: 60 Cartas en Cinco Lenguas / Erwin Gutwinski; Fritz Windischbauer Autor: Gutwinski, Erwin; Windischbauer, Fritz Data Publicação: 1962
4.		The Correct Service Departement for Hotels, Motor Hotels, Motels and Resorts / William B. Pfeiffer Autor: Pfeiffer, William B.; Voegele, Marguerite C.; Woolley, Grace H. Data Publicação: 1962