Recent trends in graph theory proceedings of the First New York City Graph Theory Conference held on June 11, 12 and 13, 1970 : sponsored by St. John's University, Jamaica, New York / edited by M. Capobianco, J.B. Frechen and M. Krolik. - Capobianco, Michael; Frechen, Joseph B.; Krolik, Max (Lecture notes in mathematics (Springer-Verlag) ;, 1971)