Cita APA (7th ed.)

Ray, S. F. (1977). The lens and all its jobs. Focal Press ; Focal/Hastings House.

Cita Chicago (17th ed.)

Ray, Sidney F. The Lens and All Its Jobs. London : New York: Focal Press ; Focal/Hastings House, 1977.

Cita MLA (8th ed.)

Ray, Sidney F. The Lens and All Its Jobs. Focal Press ; Focal/Hastings House, 1977.