Citazione Stile APA (7a Edizione)

Spencer, H., & Reynolds, L. (1977). Directional signing and labelling in libraries and museums: A review of current theory and practice. Readability of Print Research Unit Royal College of Art.

Citazione stile Chigago Style (17a edizione)

Spencer, Herbert, e Linda Reynolds. Directional Signing and Labelling in Libraries and Museums: A Review of Current Theory and Practice. [London]: Readability of Print Research Unit Royal College of Art, 1977.

Citatione MLA (9a ed.)

Spencer, Herbert, e Linda Reynolds. Directional Signing and Labelling in Libraries and Museums: A Review of Current Theory and Practice. Readability of Print Research Unit Royal College of Art, 1977.