Citazione Stile APA (7a Edizione)

Dreyfuss, H. (1972). Symbol sourcebook: An authoritative guide to international graphic symbols. McGraw-Hill Book Compancy.

Citazione stile Chigago Style (17a edizione)

Dreyfuss, Henry. Symbol Sourcebook: An Authoritative Guide to International Graphic Symbols. New York: McGraw-Hill Book Compancy, 1972.

Citatione MLA (9a ed.)

Dreyfuss, Henry. Symbol Sourcebook: An Authoritative Guide to International Graphic Symbols. McGraw-Hill Book Compancy, 1972.