Gaya APA

Msc.D, S, B, L. (2001). The Secret Science of Numerology : The Hidden Meaning of Numbers and Letters (Cet. 1). USA: The Career Press, Inc..

Gaya MLA

Msc.D, Shirley, Blackwell, Lawrence,. "The Secret Science of Numerology : The Hidden Meaning of Numbers and Letters". Cet. 1 USA: The Career Press, Inc., 2001. Text.