Cita APA (7a ed.)

Spencer, H., Reynolds, L., & Coe, B. (1973). A report on the relative legibility of alternative letter shapes,. Royal College of Art, Readability of Print Research Unit.

Cita Chicago Style (17a ed.)

Spencer, Herbert, Linda Reynolds, y Brian Coe. A Report on the Relative Legibility of Alternative Letter Shapes,. [London]: Royal College of Art, Readability of Print Research Unit, 1973.

Cita MLA (8a ed.)

Spencer, Herbert, et al. A Report on the Relative Legibility of Alternative Letter Shapes,. Royal College of Art, Readability of Print Research Unit, 1973.