APA (7th ed.) Citation

Ludwig, O. A., & Ludwig, E. A. (1962). Metalwork: Technology and practice ([4th ed.].). McKnight & McKnight Pub. Co..

Chicago Style (17th ed.) Citation

Ludwig, Oswald A., and Earl A. Ludwig. Metalwork: Technology and Practice. [4th ed.]. Bloomington, Ill.: McKnight & McKnight Pub. Co., 1962.

MLA (9th ed.) Citation

Ludwig, Oswald A., and Earl A. Ludwig. Metalwork: Technology and Practice. [4th ed.]. McKnight & McKnight Pub. Co., 1962.