APA (7th ed.) Citation

Smith, W. F., & Andrews, R. L. (1989). Instructional leadership: How principals make a difference. ASCD.

Chicago Style (17th ed.) Citation

Smith, Wilma F., and Richard L. Andrews. Instructional Leadership: How Principals Make a Difference. Alexandria, Va: ASCD, 1989.

MLA (9th ed.) Citation

Smith, Wilma F., and Richard L. Andrews. Instructional Leadership: How Principals Make a Difference. ASCD, 1989.