0 Introduction to Volume 3.- 1 - Preliminaries.- 1 Specification.- 2 Module Guide.- 2 - Trees.- 3 Tree Abstraction.- 4 The Unbounded Binary Tree.- 5. The Bounded Binary Tree.- 6 The Unbounded AVL Tree.- 7 The Unbounded BB Tree.- 8 The Unbounded k-Balanced Binary Tree.- 3 Graphs.- 9 Graph Abstraction.- 10 The Unbounded Directed Graph.- 11 The Bounded Directed Graph.- 12 The Unbounded Undirected Graph.- 13 Graph Utilities.- Appendices.- A Modula-2 Syntax Diagrams.- B Standard Modula-2 Routines.- C Modula-2 Compilers.- D Module Tables.- E Import Graphs.
