If you don't weaken : the autobiography of Oscar Ameringer
MLA
Ameringer, Oscar. If you don't weaken : the autobiography of Oscar Ameringer. New York, H. Holt and company [c1940]
APA
Ameringer, O. (1940). If you don't weaken : the autobiography of Oscar Ameringer. New York, H. Holt and company.
Chicago
Ameringer, Oscar. If you don't weaken : the autobiography of Oscar Ameringer. New York, H. Holt and company [c1940]