APA (7th ed.) Citation

Covey, S. R., Whitman, B., England, B., & Normah Sir. (2010). Predictable results in unpredictable times: Sukses setiap saat. PTS Professional Pub.

Chicago Style (17th ed.) Citation

Covey, Stephen R., Bob Whitman, Breck England, and Normah Sir. Predictable Results in Unpredictable Times: Sukses Setiap Saat. Batu Caves, Selangor: PTS Professional Pub, 2010.

MLA (8th ed.) Citation

Covey, Stephen R., et al. Predictable Results in Unpredictable Times: Sukses Setiap Saat. PTS Professional Pub, 2010.