APA aipamena

ESSINGER JAMES. (1999). SEVEN DEADLY SKILLS OF COMPETING. INTERNATIONAL THOMSON BUSINESS PRESS.

Chicago Style aipamena

ESSINGER JAMES. SEVEN DEADLY SKILLS OF COMPETING. LONDON: INTERNATIONAL THOMSON BUSINESS PRESS, 1999.

MLA aipamena

ESSINGER JAMES. SEVEN DEADLY SKILLS OF COMPETING. INTERNATIONAL THOMSON BUSINESS PRESS, 1999.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.