Lucio, W. H., & McNeil, J. D. (1969). Supervision: A synthesis of throught and action (2nd ed.). McGraw-hill.

Lucio, William H., and John D. McNeil. Supervision: A Synthesis of Throught and Action. 2nd ed. New York: McGraw-hill, 1969.

Lucio, William H., and John D. McNeil. Supervision: A Synthesis of Throught and Action. 2nd ed. McGraw-hill, 1969.