APA (7th ed.) Citation

Spencer, H., Reynolds, L., & Coe, B. (1977). The effects of image/background contrast and polarity on the legibility of printed materials / by H. Spencer, L. Reynolds and B. Coe. Royal College of Art, Readability of Print Research Unit.

Chicago Style (17th ed.) Citation

Spencer, H., L. Reynolds, and B. Coe. The Effects of Image/background Contrast and Polarity on the Legibility of Printed Materials / by H. Spencer, L. Reynolds and B. Coe. Royal College of Art, Readability of Print Research Unit, 1977.

MLA (9th ed.) Citation

Spencer, H., et al. The Effects of Image/background Contrast and Polarity on the Legibility of Printed Materials / by H. Spencer, L. Reynolds and B. Coe. Royal College of Art, Readability of Print Research Unit, 1977.

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