Cita APA

Borelli, A., Cipriani, C., Lyman, K. E., & Palmer, V. T. (1986). Simon & Schuster`s guide to gems and precious stones.

Citación estilo Chicago

Borelli, Alessandro, Curzio Cipriani, Kennie; Ed Lyman, and Valerie; Tr Palmer. Simon & Schuster`s Guide to Gems and Precious Stones. NY, Simon & Schuster, 1986.

Cita MLA

Borelli, Alessandro, et al. Simon & Schuster`s Guide to Gems and Precious Stones. 1986.