Cita APA

Covey, S. R. (1991). Principle-Centred Leadership. Pocket Books.

Citación estilo Chicago

Covey, Stephen R. Principle-Centred Leadership. London: Pocket Books, 1991.

Cita MLA

Covey, Stephen R. Principle-Centred Leadership. Pocket Books, 1991.

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