APA (7th ed.) Citation

Welford, W. T. (1986). Aberrations of optical systems / W.T. Welford. Hilger.

Chicago Style (17th ed.) Citation

Welford, W. T. Aberrations of Optical Systems / W.T. Welford. Bristol: Hilger, 1986.

MLA (9th ed.) Citation

Welford, W. T. Aberrations of Optical Systems / W.T. Welford. Hilger, 1986.

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