000
003400000a22001330004500
041
_a
eng
080
_a
62:070.486
_b
I6
942
_c
CP
245
_a
Transactions 1992 vol. II
260
_a
Colombo
_b
The Institution of Engineers
_c
1992
300
_a
Colombo
650
_a
TECHNICAL PAPERS
999
_c
41810
_d
41810