Laboratory for the study of the criminal, pauper, and defective classes.

MLA

United States. Laboratory for the study of the criminal, pauper, and defective classes. Washington : [publisher not identified], 1909.

APA

United States. (1909). Laboratory for the study of the criminal, pauper, and defective classes. Washington : [publisher not identified].

Chicago

United States. Laboratory for the study of the criminal, pauper, and defective classes. Washington : [publisher not identified], 1909.