DEVERELL C S. (1973). SUPERVISORY DEVELOPMENT. G BELL & SONS.
Cita Chicago Style (17a ed.)DEVERELL C S. SUPERVISORY DEVELOPMENT. LONDON: G BELL & SONS, 1973.
Cita MLA (9a ed.)DEVERELL C S. SUPERVISORY DEVELOPMENT. G BELL & SONS, 1973.
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