Cita APA (7a ed.)

Welford, W. T. (1962). Geometrical Optics: Optical Instrumentation. North Holland.

Cita Chicago Style (17a ed.)

Welford, W. T. Geometrical Optics: Optical Instrumentation. Amsterdam: North Holland, 1962.

Cita MLA (8a ed.)

Welford, W. T. Geometrical Optics: Optical Instrumentation. North Holland, 1962.