APA (7th ed.) Citation

Cobb, I. S. (1923). A laugh a day keeps the doktor away. George H. Doran company.

Chicago Style (17th ed.) Citation

Cobb, Irvin Shrewsbury. A Laugh a Day Keeps the Doktor Away. New York: George H. Doran company, 1923.

MLA (9th ed.) Citation

Cobb, Irvin Shrewsbury. A Laugh a Day Keeps the Doktor Away. George H. Doran company, 1923.