Cita APA

Covey, S. R. (2012). The 3rd alternative: Solving life's most difficult problems. Simon & Schuster UK.

Citación estilo Chicago

Covey, Stephen R. The 3rd Alternative: Solving Life's Most Difficult Problems. London: Simon & Schuster UK, 2012.

Cita MLA

Covey, Stephen R. The 3rd Alternative: Solving Life's Most Difficult Problems. Simon & Schuster UK, 2012.

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