APA (7th ed.) Citation

Gay, P. (1982). An introduction to crystal optics. Longman.

Chicago Style (17th ed.) Citation

Gay, P. An Introduction to Crystal Optics. London New York: Longman, 1982.

MLA (9th ed.) Citation

Gay, P. An Introduction to Crystal Optics. Longman, 1982.

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