توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Chaloupka, G. (1993). Journey in time: The world's longest continuing art tradition : the 50,000 year story of the Australian aboriginal rock art of Arnhem land. Reed.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Chaloupka, George. Journey in Time: The World's Longest Continuing Art Tradition : The 50,000 Year Story of the Australian Aboriginal Rock Art of Arnhem Land. Kew, Victoria, Australia: Reed, 1993.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Chaloupka, George. Journey in Time: The World's Longest Continuing Art Tradition : The 50,000 Year Story of the Australian Aboriginal Rock Art of Arnhem Land. Reed, 1993.