Network analysis /
Valkenburg, Van M E .
Network analysis / Textual Documents M E Van Valkenburg. - 3 / . - New Delhi : Prentice Hall of India , 1974. - NULL ; NULL.
Network analysis
621.3851 / VAL
Network analysis / Textual Documents M E Van Valkenburg. - 3 / . - New Delhi : Prentice Hall of India , 1974. - NULL ; NULL.
Network analysis
621.3851 / VAL