Lua APA (7ú heag.)

Chapman, S. J. (1923). Elementary economics (Fifth impression.). Longmans, Green and Co..

Lua i Stíl Chicago (17ú heag.)

Chapman, Sidney John. Elementary Economics. Fifth impression. London : New York, [etc.]: Longmans, Green and Co., 1923.

Lua MLA (8ú heag.)

Chapman, Sidney John. Elementary Economics. Fifth impression. Longmans, Green and Co., 1923.

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