APA
WHO, . (1993). International classification of mental and behavioral disorders: diagnostic criteria for research. Geneva: WHO Regional Publications.
Chicago
WHO, . 1993. International classification of mental and behavioral disorders: diagnostic criteria for research. Geneva: WHO Regional Publications.
Harvard
WHO, . (1993). International classification of mental and behavioral disorders: diagnostic criteria for research. Geneva: WHO Regional Publications.
MLA
WHO, . International classification of mental and behavioral disorders: diagnostic criteria for research. Geneva: WHO Regional Publications. 1993.