Braden, G. (2009). The Mystery of 2012: Prediksi, Ramalan, dan Kemungkinan. Ufuk.
Chicago Style (17th ed.) CitationBraden, Gregg. The Mystery of 2012: Prediksi, Ramalan, Dan Kemungkinan. Ufuk, 2009.
MLA (8th ed.) CitationBraden, Gregg. The Mystery of 2012: Prediksi, Ramalan, Dan Kemungkinan. Ufuk, 2009.
Warning: These citations may not always be 100% accurate.