Researchers are constantly in need of statistical data to measure behavior, test theories, and quantify information. Since the U.S. Government produces a variety of data on all aspects of our society, a self-guided exercise to teach the use of two major government statistical sources, the "Monthly Catalog of U.S. Government Publications" and the "American Statistics Index," was developed at the Colorado State University Libraries. Information relating to the use of the sources as well as tasks to be performed by the student as part of the learning process are included in the materials. The complete training exercise to be distributed following a general orientation and tour is appended. (Author/STS)