Mann Richard A. & Roberts, B. S. (2000). Smith and roberson's business law (Eleventh edition.). West Legal Studies in Business.
Lua i Stíl Chicago (17ú heag.)Mann Richard A. agus Barry S. Roberts. Smith and Roberson's Business Law. Eleventh edition. Ohio: West Legal Studies in Business, 2000.
Lua MLA (9ú heag.)Mann Richard A. agus Barry S. Roberts. Smith and Roberson's Business Law. Eleventh edition. West Legal Studies in Business, 2000.
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