APA

Stearns A. E., . (1923). The challenge of youth. Boston: W. A. Wilde company.

Chicago

Stearns Alfred Ernest, . 1923. The challenge of youth. Boston: W. A. Wilde company.

Harvard

Stearns A. E., . (1923). The challenge of youth. Boston: W. A. Wilde company.

MLA

Stearns Alfred Ernest, . The challenge of youth. Boston: W. A. Wilde company. 1923.