APA

David H. P., . (1966). International trends in mental health. New York: McGraw-Hill.

Chicago

David Henry Philip, . 1966. International trends in mental health. New York: McGraw-Hill.

Harvard

David H. P., . (1966). International trends in mental health. New York: McGraw-Hill.

MLA

David Henry Philip, . International trends in mental health. New York: McGraw-Hill. 1966.