Heyn, Ernest V. 1904-1995.
A century of wonders; 100 years of Popular science, by Ernest V. Heyn, in collaboration with past and present editors of Popular science monthly. - [1st ed.] - Garden City, N.Y., Doubleday, 1972. - 320 p. illus. (part col.) 27 cm.
0385081081
72076168
Technology--History.
T19 / .H48
609 / HEY
A century of wonders; 100 years of Popular science, by Ernest V. Heyn, in collaboration with past and present editors of Popular science monthly. - [1st ed.] - Garden City, N.Y., Doubleday, 1972. - 320 p. illus. (part col.) 27 cm.
0385081081
72076168
Technology--History.
T19 / .H48
609 / HEY