Levitt, R., & Harrison, G. (2006). Berlin: [your gay travel companion] / [written and updated by Ryan Levitt. Original photography by Gavin Harrison] (2. Auflage.). Thomas Cook.
Chicagoスタイル(17版)引用形式Levitt, Ryan, , Gavin Harrison. Berlin: [your Gay Travel Companion] / [written and Updated by Ryan Levitt. Original Photography by Gavin Harrison]. 2. Auflage. Peterborough: Thomas Cook, 2006.
MLA(8版)引用形式Levitt, Ryan, , Gavin Harrison. Berlin: [your Gay Travel Companion] / [written and Updated by Ryan Levitt. Original Photography by Gavin Harrison]. 2. Auflage. Thomas Cook, 2006.
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