SpringerLink (Online service) & Müller, W. E. (2005). St. John's Wort and its Active Principles in Depression and Anxiety. Birkhäuser Basel.
Chicago Style (17th ed.) CitationSpringerLink (Online service) and Walter E. Müller. St. John's Wort and Its Active Principles in Depression and Anxiety. Basel: Birkhäuser Basel, 2005.
MLA (8th ed.) CitationSpringerLink (Online service) and Walter E. Müller. St. John's Wort and Its Active Principles in Depression and Anxiety. Birkhäuser Basel, 2005.
Warning: These citations may not always be 100% accurate.