Babson, R. W. (1916). Business barometers used in the accumulation of money: A text book on applied economics for merchants, bankers and investors ((9th ed.) Issued Oct., 1916.). Babson's statistical organization.
Citace podle Chicago (17th ed.)Babson, Roger Ward. Business Barometers Used in the Accumulation of Money: A Text Book on Applied Economics for Merchants, Bankers and Investors. (9th ed.) Issued Oct., 1916. Wellesley Hills, Mass.: Babson's statistical organization, 1916.
Citace podle MLA (8th ed.)Babson, Roger Ward. Business Barometers Used in the Accumulation of Money: A Text Book on Applied Economics for Merchants, Bankers and Investors. (9th ed.) Issued Oct., 1916. Babson's statistical organization, 1916.
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