APA (7th ed.) Citation

Häfner, H., & Maurer, K. (1999). Methodological aspects of onset research in schizophrenia: The Mannheim study. One world, one language.

Chicago Style (17th ed.) Citation

Häfner, Heinz, and Kurt Maurer. "Methodological Aspects of Onset Research in Schizophrenia: The Mannheim Study." One World, One Language 1999.

MLA (9th ed.) Citation

Häfner, Heinz, and Kurt Maurer. "Methodological Aspects of Onset Research in Schizophrenia: The Mannheim Study." One World, One Language, 1999.