Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.

APA Citation Edition Citation

Riley, M. (1987). Theoretical and practical astrology. Ptolemy and his colleagues.

Chicago Citation Edition Citation

Riley, M. Theoretical and Practical Astrology. Ptolemy and His Colleagues. 1987.

MLA Citation Edition Citation

Riley, M. Theoretical and Practical Astrology. Ptolemy and His Colleagues. 1987.