APA (7th ed.) Citation

Herrmann, H. (1938). Ten years of work experience of Philadelphia machinists.

Chicago Style (17th ed.) Citation

Herrmann, Helene. Ten Years of Work Experience of Philadelphia Machinists. Philadelphia, Pa, 1938.

MLA (9th ed.) Citation

Herrmann, Helene. Ten Years of Work Experience of Philadelphia Machinists. 1938.

Warning: These citations may not always be 100% accurate.