TY  - BOOK
AU  - MCELLAND
AU  - PRESTON
TI  - Treatise on spherical trigonometry Part I
U1  - 512/47 
PY  - 1907///
CY  - London
PB  - Macmillan & Co. Ltd.
KW  - trigonometry
KW  - Treatise
KW  - speherical
KW  - Part
KW  - on
KW  - I
ER  -