APA

Langs R., . (1991). Take charge of your emotional life: self-analysis day by day. New York: Henry Holt & Company.

Chicago

Langs Robert, . 1991. Take charge of your emotional life: self-analysis day by day. New York: Henry Holt & Company.

Harvard

Langs R., . (1991). Take charge of your emotional life: self-analysis day by day. New York: Henry Holt & Company.

MLA

Langs Robert, . Take charge of your emotional life: self-analysis day by day. New York: Henry Holt & Company. 1991.