Leonard, E. C., & Edwin C. Leonard; Raymond L. Hilgert. (2004). Supervision: Concepts and practices of management. Mason, OH: Thomson/South-Western.
Chicago-стиль цитированияLeonard, Edwin C., và Edwin C. Leonard; Raymond L. Hilgert. Supervision: Concepts and Practices of Management. Mason, OH: Thomson/South-Western, 2004.
MLA-цитированиеLeonard, Edwin C., và Edwin C. Leonard; Raymond L. Hilgert. Supervision: Concepts and Practices of Management. Mason, OH: Thomson/South-Western, 2004.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.