APA (7th ed.) Citation

Hübner, G., & Wullschläger, K. (1969). Metric system: Conversion factors and tables (5. rev. ed.). Siemens.

Chicago Style (17th ed.) Citation

Hübner, Gerhard, and Kurt Wullschläger. Metric System: Conversion Factors and Tables. 5. rev. ed. Berlin ; München: Siemens, 1969.

MLA (9th ed.) Citation

Hübner, Gerhard, and Kurt Wullschläger. Metric System: Conversion Factors and Tables. 5. rev. ed. Siemens, 1969.