Fifth National Symposium on Vacuum Technology transactions : October, 22, 23, 24, Hotel Sir Francis Drake, San Francisco, California, U.S.A. - National Symposium on Vacuum Technology; Matheson, Wilfrid G.; American Vacuum Society (Pergamon Press)
"October, 22, 23, 24, Hotel Sir Francis Drake, San Francisco, California"//At head of title : American Vacuum Society.