APA aipamena

Ries, A. (2002). Positioning: The battle for your mind. Salemba Empat.

Chicago Style aipamena

Ries, Al. Positioning: The Battle for Your Mind. Salemba Empat, 2002.

MLA aipamena

Ries, Al. Positioning: The Battle for Your Mind. Salemba Empat, 2002.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.