TY  - BOOK
AU  - Clarke
AU  - James
TI  - Determination of the positions of Feaghmain and Haverfordwest, longitude stations on the great European arc of parallel
PY  - 1857///
CY  - London
PB  - G.E. Eyre and W. Spottiswoode
KW  - Britain
KW  - Ordnance survey
ER  -