APA (7th ed.) Citation

Grant, R. M. (1994). Ptolemaic Astronomy in Origen and Hippolytus. "Agathē elpis", 291-304.

Chicago Style (17th ed.) Citation

Grant, Robert McQueen. "Ptolemaic Astronomy in Origen and Hippolytus." "Agathē Elpis" 1994: 291-304.

MLA (8th ed.) Citation

Grant, Robert McQueen. "Ptolemaic Astronomy in Origen and Hippolytus." "Agathē Elpis", 1994, pp. 291-304.

Warning: These citations may not always be 100% accurate.