TY  - BOOK
AU  - Kotkin, G.L.
ED  - Serbo, V.G.
ED  - Haar, D. Ter
TI  - Collection of problems in classical mechanics
T2  - International series of monographs in natural philosolphy; no.31
U1  - 531 
PY  - 1971///
CY  - Oxford
PB  - Pergamon Press
ER  -