APA Edition Citation

Spriegel, W. R. .. a. (1957). Elements of supervision/2e (2nd ed.). John wiley and sons.

Chicago Edition Citation

Spriegel, William R. ...[et al.]. Elements of Supervision/2e. 2nd ed. New York: John wiley and sons, 1957.

MLA Edition Citation

Spriegel, William R. ...[et al.]. Elements of Supervision/2e. 2nd ed. John wiley and sons, 1957.

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