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