APA (7th ed.) Citation

Welford, W. T. (1962). Geometrical optics: Optical instrumentation. North-Holland Publ.

Chicago Style (17th ed.) Citation

Welford, Walter T. Geometrical Optics: Optical Instrumentation. Amsterdam: North-Holland Publ, 1962.

MLA (9th ed.) Citation

Welford, Walter T. Geometrical Optics: Optical Instrumentation. North-Holland Publ, 1962.

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