Markham, D. (1987). The cultic phenomenon: A revealing look at ourselves. Albatross.
Lua i Stíl Chicago (17ú heag.)Markham, Dan'l. The Cultic Phenomenon: A Revealing Look at Ourselves. Tring: Albatross, 1987.
Lua MLA (9ú heag.)Markham, Dan'l. The Cultic Phenomenon: A Revealing Look at Ourselves. Albatross, 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.