APA استشهاد

Buckley, F., & Harary, F. (1990). Distance in graphs. Addison-Wesley Pub. Co..

استشهاد بنمط شيكاغو

Buckley, Fred, و Frank Harary. Distance in Graphs. Redwood City, Calif.: Addison-Wesley Pub. Co., 1990.

MLA استشهاد

Buckley, Fred, و Frank Harary. Distance in Graphs. Addison-Wesley Pub. Co., 1990.