Παραπομπή σε μορφή APA (7η εκδ.)

Rodenburg, P. (2008). The second circle: How to use positive energy for success in every situation : this book will transform your life, minute to minute (1st American ed.). W. W. Norton.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Rodenburg, Patsy. The Second Circle: How to Use Positive Energy for Success in Every Situation : This Book Will Transform Your Life, Minute to Minute. 1st American ed. New York: W. W. Norton, 2008.

Παραπομπή σε μορφή MLA (9th εκδ.)

Rodenburg, Patsy. The Second Circle: How to Use Positive Energy for Success in Every Situation : This Book Will Transform Your Life, Minute to Minute. 1st American ed. W. W. Norton, 2008.