APA aipamena

Volkema, R. J. (2006). Leverage: How to get it and how to keep it in any negotiation. Amacom.

Chicago Style aipamena

Volkema, Roger J. Leverage: How to Get It and How to Keep It in Any Negotiation. Amacom, 2006.

MLA aipamena

Volkema, Roger J. Leverage: How to Get It and How to Keep It in Any Negotiation. Amacom, 2006.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.