Forrest, G. The Laser Marketplace in 1989. SPIE Digital Library.
Cita Chicago (17th ed.)Forrest, Gary. The Laser Marketplace in 1989. SPIE Digital Library.
Cita MLA (9th ed.)Forrest, Gary. The Laser Marketplace in 1989. SPIE Digital Library.
Atenció: Aquestes cites poden no estar 100% correctes.