Ong, W. J. (1952). Basel, Switzerland, as seen across Barfüsser Platz.
Čikaški stil citiranja (17. izdanje)Ong, Walter J. Basel, Switzerland, as Seen Across Barfüsser Platz. 1952.
MLA način citiranja (8. izdanje)Ong, Walter J. Basel, Switzerland, as Seen Across Barfüsser Platz. 1952.
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