APA (7th ed.) Citation

Häfner, H. (1999). Onset and prodromal phase as determinants of the course. Search for the causes of schizophrenia ; 4: Balance of the century.

Chicago Style (17th ed.) Citation

Häfner, Heinz. "Onset and Prodromal Phase as Determinants of the Course." Search for the Causes of Schizophrenia ; 4: Balance of the Century 1999.

MLA (9th ed.) Citation

Häfner, Heinz. "Onset and Prodromal Phase as Determinants of the Course." Search for the Causes of Schizophrenia ; 4: Balance of the Century, 1999.