RIES, A. (2002). Positioning: The Battle for Your Mind, Ed. 1, Edisi Ulang Tahun ke 20. Salemba Empat.
Chicago Style (17th ed.) CitationRIES, Al. Positioning: The Battle for Your Mind, Ed. 1, Edisi Ulang Tahun Ke 20. Salemba Empat, 2002.
MLA (8th ed.) CitationRIES, Al. Positioning: The Battle for Your Mind, Ed. 1, Edisi Ulang Tahun Ke 20. Salemba Empat, 2002.
Warning: These citations may not always be 100% accurate.