Citazione Stile APA (7a Edizione)

Stoddard, J. L. (1915). Why is it ? (Third Edition.). The Vital Issue Co..

Citazione stile Chigago Style (17a edizione)

Stoddard, John Lawson. Why Is It ? Third Edition. New York: The Vital Issue Co., 1915.

Citatione MLA (9a ed.)

Stoddard, John Lawson. Why Is It ? Third Edition. The Vital Issue Co., 1915.