APA aipamena

Michelli, D. Successful assertiveness in a week. Headway.

Chicago Style aipamena

Michelli, Dena. Successful Assertiveness in a Week. Headway.

MLA aipamena

Michelli, Dena. Successful Assertiveness in a Week. Headway.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.