APA (7e ed.) Bronvermelding

Directory of travel and tours establishment in South East-Asia and Austral-Asia. s.n.

Chicago (17e ed.) Bronvermelding

Directory of Travel and Tours Establishment in South East-Asia and Austral-Asia. [S.l: s.n.

MLA (9e ed.) Bronvermelding

Directory of Travel and Tours Establishment in South East-Asia and Austral-Asia. s.n.

Let op: Deze citaties zijn niet altijd 100% accuraat.