Chapter 11: 11.2-3, 11.2-4, 11.3-2, 11.3-3, and one of 11.3-6 and 11.3-10.
The diagram shown in Exercise 11.2-3 is called a precedence diagram, in that it describes the precedence relationship between different activities in a project. A description of such networks can be found on page 471 of the text.