APA Style

karen Hurrel & marry L. Johnson, PH.D.. (2008). Gemstones: A Complete Reference Color Precious And Semiprecious Stones of The World . Singapore: Page One Publishing Pte Ltd..

Chicago Style

karen Hurrel & marry L. Johnson, PH.D.. Gemstones: A Complete Reference Color Precious And Semiprecious Stones of The World. Singapore: Page One Publishing Pte Ltd., 2008. Text.

MLA Style

karen Hurrel & marry L. Johnson, PH.D.. Gemstones: A Complete Reference Color Precious And Semiprecious Stones of The World. Singapore: Page One Publishing Pte Ltd., 2008. Text.

Turabian Style

karen Hurrel & marry L. Johnson, PH.D.. Gemstones: A Complete Reference Color Precious And Semiprecious Stones of The World. Singapore: Page One Publishing Pte Ltd., 2008. Print.