APA (7th ed.) Citation

Welford, W. T. (1988). Optics (3. ed.). Oxford Univ. Pr.

Chicago Style (17th ed.) Citation

Welford, Walter T. Optics. 3. ed. Oxford <<[u.a.]>>: Oxford Univ. Pr, 1988.

MLA (9th ed.) Citation

Welford, Walter T. Optics. 3. ed. Oxford Univ. Pr, 1988.