Gaya APA

Robinson, W, A, E. (1992). Collection for Executive: Best Sales Promotions (PROMOSI PENJUALAN TEREBAIK) . Jakarta: PT Elex Media Komputindo.

Gaya MLA

Robinson, William, A.,, Etc. "Collection for Executive: Best Sales Promotions (PROMOSI PENJUALAN TEREBAIK)". Jakarta: PT Elex Media Komputindo, 1992. Buku.