TY  - BOOK
AU  - Roth,Gunter D.
AU  - Helm,Alex
TI  - The system of minor planets
U1  - 523.44 
PY  - 1962///
CY  - Princeton, N.J.
PB  - Faber and Faber
KW  - Asteroids
N1  - Enlarged ed. of the original German: Die Planetoiden; Includes bibliographical references and index
ER  -