Παραπομπή σε μορφή APA (7η εκδ.)

Herring, J. How to Decide: What to do when you don't know what to do (1.). Pearson Education UK.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Herring, Jonathan. How to Decide: What to Do When You Don't Know What to Do. 1. Pearson Education UK.

Παραπομπή σε μορφή MLA (8th εκδ.)

Herring, Jonathan. How to Decide: What to Do When You Don't Know What to Do. 1. Pearson Education UK.