TY  - BOOK
AU  - Heyn,Ernest Victor
TI  - A century of wonders: 100 years of Popular science,
SN  - 0385081081
AV  - T19 .H48
U1  - 609/.04 
PY  - 1972///
CY  - Garden City, N.Y.
PB  - Doubleday
KW  - Technology
KW  - History
UR  - http://www.archive.org/details/centuryofwonders00heyn
UR  - http://www.openlibrary.org/books/OL5296267M
ER  -