TY  - BOOK
AU  - Collins,James
AU  - Md. Rockville,
ED  - United States.
TI  - Formulas for positioning at sea by circular, hyperbolic and astronomic methods
U1  -  510.82 
PY  - 1980///
CY  - Washington, D.C.
PB  - U.S. Government Printing Office
KW  - Differential equations, Hyperbolic
KW  - Differentiable dynamical systems
ER  -