TY  - BOOK
AU  - Waugh, Albert
TI  - Sundials: their theory and construction 
SN  - 0486229475
U1  - 529.78 
PY  - 1973///
CY  - New York
PB  - Dover Publications
KW  - Time
KW  - Clocks and watches
N1  - Includes bibliography and index
ER  -