Singapore Tourist Promotion Board. Research Dept. (1976). Pleasure/vacation visitors from Hong Kong to Singapore, with special reference to visitors on group tours. Singapore Tourist Promotion Board.
Chicagoスタイル(17版)引用形式Singapore Tourist Promotion Board. Research Dept. Pleasure/vacation Visitors from Hong Kong to Singapore, with Special Reference to Visitors on Group Tours. Singapore: Singapore Tourist Promotion Board, 1976.
MLA(8版)引用形式Singapore Tourist Promotion Board. Research Dept. Pleasure/vacation Visitors from Hong Kong to Singapore, with Special Reference to Visitors on Group Tours. Singapore Tourist Promotion Board, 1976.
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