Cita APA (7th ed.)

Heavens , O. S. (1964). Optical masers. Methuen.

Cita Chicago (17th ed.)

Heavens , O. S. Optical Masers. London: Methuen, 1964.

Cita MLA (9th ed.)

Heavens , O. S. Optical Masers. Methuen, 1964.