TY  - BOOK
AU  - Lakshminarayanan, Vasudevan
AU  - Ghatak, A. K
AU  - Thyagarajan, K
TI  - Lagrangian optics
SN  - 9780792375821
SN  - 200105024
U1  - 535.32 LAK 
PY  - 2002///
CY  - Dordrecht ; Boston
PB  - Kluwer Academic Publishers
KW  - Geometrical optics
N1  - Includes bibliographical references and index
ER  -