Canadian Gemmological Association. (1976). The Canadian gemmologist. Canadian Gemmological Assoc[iation.
Cita Chicago Style (17a ed.)Canadian Gemmological Association. The Canadian Gemmologist. [Toronto]: Canadian Gemmological Assoc[iation, 1976.
Cita MLA (9a ed.)Canadian Gemmological Association. The Canadian Gemmologist. Canadian Gemmological Assoc[iation, 1976.
Precaución: Estas citas no son 100% exactas.