McGraw-Hill Encyclopedia of World Biography Vol. 12
Zworykin Ts'ai
McGraw-Hill Encyclopedia of World Biography Vol. 12 McGraw-Hill Encyclopedia of World Biography Vol. 12 - New York McGraw-Hill Book Company
923.03
McGraw-Hill Encyclopedia of World Biography Vol. 12 McGraw-Hill Encyclopedia of World Biography Vol. 12 - New York McGraw-Hill Book Company
923.03