TY  - BOOK
AU  - Escobal,Pedro Ramon
TI  - Methods of orbit determination
SN  - 0882753193
PY  - 1976///
CY  - Huntington, N.Y.
PB  - R. E. Krieger Pub. Co.
KW  - Astrodynamics
KW  - Artificial satellites
KW  - Orbits
N1  - Reprint of the ed. published by Wiley, New York; Includes bibliographical references and index
ER  -