APA

Bittell L. R., . (1974). What every supervisor should know. New York: McGraw Hill.

Chicago

Bittell Lester R, . 1974. What every supervisor should know. New York: McGraw Hill.

Harvard

Bittell L. R., . (1974). What every supervisor should know. New York: McGraw Hill.

MLA

Bittell Lester R, . What every supervisor should know. New York: McGraw Hill. 1974.