00952cam a22002891 4500 9397510 BD-DhUL 20140813120454.0 711018s1965 nyua b 000 0 eng 65012710 GB66-232 (OCoLC)165482 DLC ODaWU OCoLC Uk DLC BD-DhUL premarc H61 .H287 311.26 HAS Harary, Frank. Structural models: an introduction to the theory of directed graphs [by] Frank Harary, Robert Z. Norman [and] Dorwin Cartwright. New York, Wiley [1965] ix, 415 p. illus. 24 cm. Bibliography: p. 392-395. Social sciences Mathematical models. Norman, Robert Z. (Robert Zane), 1924- joint author. Cartwright, Dorwin, joint author. 7 cbc oclcrpl u ncip 19 y-gencatlg ddc BK 2454 2454 0 0 ddc 0 311_260000000000000_HAS 0 NFIC 4635 DUSL DUSL GEN 1973-05-28 Purchased 311.26 HAS A96768 2014-08-13 2014-08-13 BK