APA (7th ed.) Citation

Penfold, R. A. (1987). Modern opto device projects. Bernard Babani.

Chicago Style (17th ed.) Citation

Penfold, R. A. Modern Opto Device Projects. Bernard Babani, 1987.

MLA (9th ed.) Citation

Penfold, R. A. Modern Opto Device Projects. Bernard Babani, 1987.

Warning: These citations may not always be 100% accurate.