Παραπομπή APA

Wheadon, R. A. (1968). Principles of light and optics, eng.

Παραπομπή Chicago Style

Wheadon, R. A. Principles of Light and Optics, Eng. 1968.

Παραπομπή MLA

Wheadon, R. A. Principles of Light and Optics, Eng. 1968.