Lua APA (7ú heag.)

Wengert, P. (1956). Sales talk. The Collegian Folio.

Lua i Stíl Chicago (17ú heag.)

Wengert, Peter. "Sales Talk." The Collegian Folio 1956.

Lua MLA (9ú heag.)

Wengert, Peter. "Sales Talk." The Collegian Folio, 1956.

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