Mager, R. F. (1984). Goal analysis (2nd ed.). Lake Publishing Co..
Cita Chicago (17th ed.)Mager, Robert F. Goal Analysis. 2nd ed. Belmont, Calif.: Lake Publishing Co., 1984.
Cita MLA (8th ed.)Mager, Robert F. Goal Analysis. 2nd ed. Lake Publishing Co., 1984.
Atenció: Aquestes cites poden no estar 100% correctes.