APA

Dreyfuss H., . (1972). Symbol sourcebook: an authoritative guide to international graphic symbols. New York: McGraw-Hill.

Chicago

Dreyfuss Henry, . 1972. Symbol sourcebook: an authoritative guide to international graphic symbols. New York: McGraw-Hill.

Harvard

Dreyfuss H., . (1972). Symbol sourcebook: an authoritative guide to international graphic symbols. New York: McGraw-Hill.

MLA

Dreyfuss Henry, . Symbol sourcebook: an authoritative guide to international graphic symbols. New York: McGraw-Hill. 1972.