APA aipamena

FRENKEL MICHAEL. (2005). RISK MANAGEMENT CHALLENGE AND OPPORTUNITY (2ND.). SPRINGER.

Chicago Style aipamena

FRENKEL MICHAEL. RISK MANAGEMENT CHALLENGE AND OPPORTUNITY. 2ND. NEW YORK: SPRINGER, 2005.

MLA aipamena

FRENKEL MICHAEL. RISK MANAGEMENT CHALLENGE AND OPPORTUNITY. 2ND. SPRINGER, 2005.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.