ROBINSON NICK. (1989). MARKETING TOOLKIT. MERCURY BOOKS.
Chicago Style aipamenaROBINSON NICK. MARKETING TOOLKIT. LONDON: MERCURY BOOKS, 1989.
MLA aipamenaROBINSON NICK. MARKETING TOOLKIT. MERCURY BOOKS, 1989.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.