Lua APA (7ú heag.)

Williams, M. H. (1928). Investment trusts in America. Macmillan CO.

Lua i Stíl Chicago (17ú heag.)

Williams, Marshall Henry. Investment Trusts in America. New York: Macmillan CO, 1928.

Lua MLA (9ú heag.)

Williams, Marshall Henry. Investment Trusts in America. Macmillan CO, 1928.

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