APA (7e ed.) Bronvermelding

Pennick, N. (2011). The ancient science of geomancy: Living in harmony with the earth with 128 illustrations. Llewellyn Publications.

Chicago (17e ed.) Bronvermelding

Pennick, Nigel. The Ancient Science of Geomancy: Living in Harmony with the Earth with 128 Illustrations. Woodbury, Minn: Llewellyn Publications, 2011.

MLA (9e ed.) Bronvermelding

Pennick, Nigel. The Ancient Science of Geomancy: Living in Harmony with the Earth with 128 Illustrations. Llewellyn Publications, 2011.