姚延波. (2008). 旅行社经营与管理: Operation and management of travel servie. 首都经济贸易大学出版社.
Chicago (17e ed.) Bronvermelding姚延波. 旅行社经营与管理: Operation and Management of Travel Servie. 首都经济贸易大学出版社, 2008.
MLA (8e ed.) Bronvermelding姚延波. 旅行社经营与管理: Operation and Management of Travel Servie. 首都经济贸易大学出版社, 2008.
Let op: Deze citaties zijn niet altijd 100% accuraat.