Παραπομπή σε μορφή APA (7η εκδ.)

SpringerLink (Online service) & Müller, W. E. (2005). St. John's Wort and its Active Principles in Depression and Anxiety. Birkhäuser Basel.

Παραπομπή σε μορφή Chicago (17η εκδ.)

SpringerLink (Online service) και Walter E. Müller. St. John's Wort and Its Active Principles in Depression and Anxiety. Basel: Birkhäuser Basel, 2005.

Παραπομπή σε μορφή MLA (8th εκδ.)

SpringerLink (Online service) και Walter E. Müller. St. John's Wort and Its Active Principles in Depression and Anxiety. Birkhäuser Basel, 2005.