Gaya APA

Walters, R, J. (1996). The power of gemstones: Precious and semi-precious stones, healing powers, mythical stones, superstitions, talismans and mystical properties. . Chartwell Books: Chartwell Books.

Gaya MLA

Walters, Raymond, J.L.. "The power of gemstones: Precious and semi-precious stones, healing powers, mythical stones, superstitions, talismans and mystical properties. ". Chartwell Books: Chartwell Books, 1996. Buku.