000 00445pam a2200157a 44500
008 160408b1965 xxu||||| |||| 00| 0 eng d
082 _a301.8
_bH212s
100 _aHarray, Frank
245 1 _aSTRUCTURAL MODELS
_cAN INTRODUCTION TO THE THEORY OF DERECTED GRAPHS
260 _aN. Y.
_bWiley
_c1965
300 _a415
650 _aSocial Sciences. Mathematical Models
700 _aDorwin, Cartwright
964 _gCIRC
997 _aA47732 C
999 _c249425
_d249425