(1985). Graphs and order: The role of graphs in the theory of ordered sets and its applications. Reidel.
Chicago-Zitierstil (17. Ausg.)Graphs and Order: The Role of Graphs in the Theory of Ordered Sets and Its Applications. Dordrecht u.a: Reidel, 1985.
MLA-Zitierstil (9. Ausg.)Graphs and Order: The Role of Graphs in the Theory of Ordered Sets and Its Applications. Reidel, 1985.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.