APA Citation

SPRIEGEL, W. R. (1957). Elements of Supervision. John Wiley & Sons.

Chicago Style Citation

SPRIEGEL, W. R. Elements of Supervision. John Wiley & Sons, 1957.

MLA Citation

SPRIEGEL, W. R. Elements of Supervision. John Wiley & Sons, 1957.

Warning: These citations may not always be 100% accurate.