APA (7th ed.) Citation

Willett, C. S. (1974). Introduction to gas lasers: Population inversion mechanisms. With emphasis on selective excitation processes. Pergamon Press.

Chicago Style (17th ed.) Citation

Willett, Colin S. Introduction to Gas Lasers: Population Inversion Mechanisms. With Emphasis on Selective Excitation Processes. Oxford [u.a.]: Pergamon Press, 1974.

MLA (9th ed.) Citation

Willett, Colin S. Introduction to Gas Lasers: Population Inversion Mechanisms. With Emphasis on Selective Excitation Processes. Pergamon Press, 1974.