APA (7th ed.) Citation

Flader, L., & Mertle, J. S. (1948). Modern photoengraving: A practical textbook on latest American procedures. Modern Photoengraving Publishers.

Chicago Style (17th ed.) Citation

Flader, Louis, and J. S. Mertle. Modern Photoengraving: A Practical Textbook on Latest American Procedures. Chicago: Modern Photoengraving Publishers, 1948.

MLA (9th ed.) Citation

Flader, Louis, and J. S. Mertle. Modern Photoengraving: A Practical Textbook on Latest American Procedures. Modern Photoengraving Publishers, 1948.