APA

Sheldon W. H., Stevens S. S., . (1970). The varieties of temperament: a psychology of constitutional differences. New York: Hafner Publishing Co.

Chicago

Sheldon William Herbert, Stevens Stanley Smith, . 1970. The varieties of temperament: a psychology of constitutional differences. New York: Hafner Publishing Co.

Harvard

Sheldon W. H., Stevens S. S., . (1970). The varieties of temperament: a psychology of constitutional differences. New York: Hafner Publishing Co.

MLA

Sheldon William Herbert, Stevens Stanley Smith, . The varieties of temperament: a psychology of constitutional differences. New York: Hafner Publishing Co. 1970.