TY  - BOOK
AU  - Porter,W.
AU  - McDonnell,Jr.
TI  - Introduction to map projections
U1  - 526.8 
PY  - 1979///
CY  - N.Y.
PB  - Mercel Dekker
KW  - Astronomy , Allied Sci
KW  - Astronomy , Allied Science
ER  -