TY  - BOOK
AU  - Pertuch,Walter A.R.
AU  - Hilker,Emerson W.
ED  - Franklin Institute (Philadelphia, Pa.).
TI  - Horological books and pamphlets in the Franklin Institute Library
PY  - 1968///]
CY  - Philadelphia
PB  - Franklin Institute Library
KW  - Franklin Institute (Philadelphia, Pa.)
KW  - Library
KW  - Clocks and watches
KW  - Bibliography
KW  - Catalogs
KW  - lcgft
ER  -