APA aipamena

HEIMAN STEPHEN E. (1998). NEW STRATEGIC SELLING. WARNER BOOK.

Chicago Style aipamena

HEIMAN STEPHEN E. NEW STRATEGIC SELLING. NEW YORK: WARNER BOOK, 1998.

MLA aipamena

HEIMAN STEPHEN E. NEW STRATEGIC SELLING. WARNER BOOK, 1998.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.