Παραπομπή APA

Ronan, C. A. (1964). Optical astronomy: Changing horizons. Phoenix House.

Παραπομπή Chicago Style

Ronan, Colin A. Optical Astronomy: Changing Horizons. London: Phoenix House, 1964.

Παραπομπή MLA

Ronan, Colin A. Optical Astronomy: Changing Horizons. Phoenix House, 1964.