Chartrand, Gary Graphs and digraps Gary Chartrand, Linda Lesniak and Ping Zhang - 6th ed. - London CRC Press 2016 - xii,628p.:ill.; 24cm. - Textbooks in mathematics . ISBN: 978-1-4987-3576-6 Subjects--Topical Terms: Graph theory Dewey Class. No.: 511.54 / CHA