APA

Sayles L. R., . (1979). Leadership: what effective managers really do ... and how they do it. New York: McGraw-Hill.

Chicago

Sayles Leonard R, . 1979. Leadership: what effective managers really do ... and how they do it. New York: McGraw-Hill.

Harvard

Sayles L. R., . (1979). Leadership: what effective managers really do ... and how they do it. New York: McGraw-Hill.

MLA

Sayles Leonard R, . Leadership: what effective managers really do ... and how they do it. New York: McGraw-Hill. 1979.