Gaya APA

Kotter, J, P. (1990). A Force for Change : How Leadership Differs from Management (Cet. 1). New York: Penerbit The Free Press.

Gaya MLA

Kotter, John, P.. "A Force for Change : How Leadership Differs from Management". Cet. 1 New York: Penerbit The Free Press, 1990. Text.