Digital differential analysers /(by) G.F. Forbes.
Forbes, G.F.
Digital differential analysers /(by) G.F. Forbes. by G.F. Forbes. - California G.E. Forbes 1957
519 / N57 "R"
Digital differential analysers /(by) G.F. Forbes. by G.F. Forbes. - California G.E. Forbes 1957
519 / N57 "R"