Heinz, V. (1989). Insight guides: Rome. APA Pub.
Lua i Stíl Chicago (17ú heag.)Heinz, Vestner. Insight Guides: Rome. Singapore: APA Pub, 1989.
Lua MLA (9ú heag.)Heinz, Vestner. Insight Guides: Rome. APA Pub, 1989.
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