APA (7th ed.) Citation

Gettings, F. (1989). The secret zodiac: The hidden art in mediaeval astrology. Arkana.

Chicago Style (17th ed.) Citation

Gettings, Fred. The Secret Zodiac: The Hidden Art in Mediaeval Astrology. London [u.a.]: Arkana, 1989.

MLA (9th ed.) Citation

Gettings, Fred. The Secret Zodiac: The Hidden Art in Mediaeval Astrology. Arkana, 1989.

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