APA

Jacobson E., . (1957). You must relax: a practical method of reducing the strains of modern living. New York: McGraw-Hill.

Chicago

Jacobson Edmund, . 1957. You must relax: a practical method of reducing the strains of modern living. New York: McGraw-Hill.

Harvard

Jacobson E., . (1957). You must relax: a practical method of reducing the strains of modern living. New York: McGraw-Hill.

MLA

Jacobson Edmund, . You must relax: a practical method of reducing the strains of modern living. New York: McGraw-Hill. 1957.