APA (7th ed.) Citation

Keller, J. J. (1975). Metric units edition: Comparisons, factors, and tables. J. J. Keller & Associates.

Chicago Style (17th ed.) Citation

Keller, John J. Metric Units Edition: Comparisons, Factors, and Tables. Neenah, Wis.: J. J. Keller & Associates, 1975.

MLA (9th ed.) Citation

Keller, John J. Metric Units Edition: Comparisons, Factors, and Tables. J. J. Keller & Associates, 1975.