Some sources are giving 1979 as the publication date. However the "End-Of-the-World Theory to Get a Test" story most definitely indicates that this was published sometime after May 1980.
"PUBLISHED BY: Seth Tobocman, Peter Kuper, Christof Kohlhöfer
PRODUCTION DONE AT: Brooklyn Bridge Publications
SPECIAL THANKS TO: Ben Katchor, Bill Tobocman and Eve Kasner
All artists and writers hold the copyright on their work however World War
Three Illustrated is trademark and copyright Seth Tobocman 1980.
Address inquiries to:
W.W. 3 Illus., E. 3rd., #1A, N.Y.C., N.Y. 10009"