Allen, v. c., & ravensburg, N. G. v. (1994). a beginner's business book. marburg consult for self-help promotion.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)Allen, victor c., ба Nicole Goler v. ravensburg. A Beginner's Business Book. marburg: marburg consult for self-help promotion, 1994.
MLA -ийн эшлэл (9 дэх хэвлэлт)Allen, victor c., ба Nicole Goler v. ravensburg. A Beginner's Business Book. marburg consult for self-help promotion, 1994.