APA aipamena

Levinsion, H. (1989). Phobia free: A medical breakthrough linking 90. M. Evans.

Chicago Style aipamena

Levinsion, Harold. Phobia Free: A Medical Breakthrough Linking 90. M. Evans, 1989.

MLA aipamena

Levinsion, Harold. Phobia Free: A Medical Breakthrough Linking 90. M. Evans, 1989.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.