Spriegel William R.,Edward Schulz.,William B.Spriegel. (1957). Elements of Supervision / William R.Spriegel. John Wiley \r Sons,Inc.
Chicago Style (17th ed.) CitationSpriegel William R.,Edward Schulz.,William B.Spriegel. Elements of Supervision / William R.Spriegel. John Wiley \r Sons,Inc, 1957.
MLA (8th ed.) CitationSpriegel William R.,Edward Schulz.,William B.Spriegel. Elements of Supervision / William R.Spriegel. John Wiley \r Sons,Inc, 1957.
Warning: These citations may not always be 100% accurate.