Kehl, G. L., & Kehl, G. L. (1949). The principles of metallorgraphic laboratory practice (3. edition.). New York, New York: McGraw-Hill.
Chicago Style CitationKehl, George Louis, and George Louis Kehl. The Principles of Metallorgraphic Laboratory Practice. 3. edition. New York, New York: McGraw-Hill, 1949.
MLA CitationKehl, George Louis, and George Louis Kehl. The Principles of Metallorgraphic Laboratory Practice. 3. edition. New York, New York: McGraw-Hill, 1949.
Warning: These citations may not always be 100% accurate.