APA (7e ed.) Bronvermelding

Canfield, J., & Switzer, J. (2005). The success principles: How to get from where you are to where you want to be. Harper Resource Book.

Chicago (17e ed.) Bronvermelding

Canfield, Jack, en Janet Switzer. The Success Principles: How to Get from Where You Are to Where You Want to Be. New York, NY: Harper Resource Book, 2005.

MLA (8e ed.) Bronvermelding

Canfield, Jack, en Janet Switzer. The Success Principles: How to Get from Where You Are to Where You Want to Be. Harper Resource Book, 2005.