000 00290pam a2200121a 44500
008 160408b1980 xxu||||| |||| 00| 0 eng d
082 _a531
_bOP2E
100 _a
245 1 _aGEOMETRY OF MECHANISMS
260 _a
_bThe Open University Press
_c1980
964 _gCIRC
997 _aA72242 C
999 _c280386
_d280386