APA(7版)引用形式

Radke, D. (1975). Contribution of the international tourism to the economic and social development of Sri Lanka. German Development Institute.

Chicagoスタイル(17版)引用形式

Radke, Detlef. Contribution of the International Tourism to the Economic and Social Development of Sri Lanka. Berlin: German Development Institute, 1975.

MLA(9版)引用形式

Radke, Detlef. Contribution of the International Tourism to the Economic and Social Development of Sri Lanka. German Development Institute, 1975.

警告: この引用は必ずしも正確ではありません.