APA

Hind P., Tritt B. & Hoffmann E. (1976). Effects of level of illumination, stroke-width, visual angle and contrast on the legibility of numerals of various fonts. : ARRB Proceedings. Vol 8, session 25.

Chicago

Hind PR, Tritt BH and Hoffmann ER. 1976. Effects of level of illumination, stroke-width, visual angle and contrast on the legibility of numerals of various fonts. : ARRB Proceedings. Vol 8, session 25.

Harvard

Hind P., Tritt B. and Hoffmann E. (1976). Effects of level of illumination, stroke-width, visual angle and contrast on the legibility of numerals of various fonts. : ARRB Proceedings. Vol 8, session 25.

MLA

Hind PR, Tritt BH and Hoffmann ER. Effects of level of illumination, stroke-width, visual angle and contrast on the legibility of numerals of various fonts. : ARRB Proceedings. Vol 8, session 25. 1976.