APA

Sibson R. E., . (1976). Increasing employee productivity. New York: AMACOM.

Chicago

Sibson Robert Earl, . 1976. Increasing employee productivity. New York: AMACOM.

Harvard

Sibson R. E., . (1976). Increasing employee productivity. New York: AMACOM.

MLA

Sibson Robert Earl, . Increasing employee productivity. New York: AMACOM. 1976.