Art since 1950 : American and international.
MLA
Seattle world's fair. Art Since 1950 : American and International. Seattle: [s.n.], 1962.
APA
Seattle world's fair, S. world's fair. (1962). Art since 1950 : American and international. Seattle: [s.n.].
Chicago
Seattle world's fair Art Since 1950: American and International. Seattle: [s.n.], 1962.