(1997). Trekking, canyonning, b. jumping. Temas e Debates.
Chicagoスタイル(17版)引用形式Trekking, Canyonning, B. Jumping. Temas e Debates, 1997.
MLA(8版)引用形式Trekking, Canyonning, B. Jumping. Temas e Debates, 1997.
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APA(7版)引用形式