Cita APA

Stephen R Covey. (1992). Principle centred leadership. Pocket Books.

Citación estilo Chicago

Stephen R Covey. Principle Centred Leadership. London: Pocket Books, 1992.

Cita MLA

Stephen R Covey. Principle Centred Leadership. Pocket Books, 1992.

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