[1] R.J. House, Path-Goal Theory of Leadership: Lessons, Legacy, and Reformulated Theory, Leadership Quarterly, 7(3), p. 348, http://knowledge.wharton.upenn.edu/papers/674.pdf
[2] House, R.J. (1971). A path-goal theory of leader effectiveness. Administrative Science Quarterly, 16, 321-339
House, R.J. and Mitchell, T.R. (1974). Path-goal theory of leadership. Contemporary Business, 3, Fall, 81-98
[3] R.J. House, Path-Goal Theory of Leadership: Lessons..., p. 323.