Allen, v. c., & ravensburg, N. G. v. (1994). a beginner's business book. marburg consult for self-help promotion.
Chicago-viite (17. p.)Allen, victor c., ja Nicole Goler v. ravensburg. A Beginner's Business Book. marburg: marburg consult for self-help promotion, 1994.
MLA-viite (9. p.)Allen, victor c., ja Nicole Goler v. ravensburg. A Beginner's Business Book. marburg consult for self-help promotion, 1994.
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