Matlins, A. L., Bonanno, A. C., & Crystal, J. (1990). Engagement & wedding rings: The definitive buying guide for people in love. GemStone Press.
Lua i Stíl Chicago (17ú heag.)Matlins, Antoinette Leonard, Antonio C. Bonanno, agus Jane Crystal. Engagement & Wedding Rings: The Definitive Buying Guide for People in Love. South Woodstock, VT: GemStone Press, 1990.
Lua MLA (9ú heag.)Matlins, Antoinette Leonard, et al. Engagement & Wedding Rings: The Definitive Buying Guide for People in Love. GemStone Press, 1990.
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