Gaya APA

Pennick, N. (1997). The sacred world of the Celts: An illustrated guide to Cel- tic spirituality and mythology. . Rochester: Rochester Inner Traditions International.

Gaya MLA

Pennick, Nigel. "The sacred world of the Celts: An illustrated guide to Cel- tic spirituality and mythology. ". Rochester: Rochester Inner Traditions International, 1997. Buku.