APA (7th ed.) Citation

Zerwas, P. M., & Kastrup. H. A. (1993). QCD 20 years later: Aachen, June 9-13, 1992. World Scientific.

Chicago Style (17th ed.) Citation

Zerwas, P. M., and Kastrup. H. A. QCD 20 Years Later: Aachen, June 9-13, 1992. Singapore ; New Jersey: World Scientific, 1993.

MLA (9th ed.) Citation

Zerwas, P. M., and Kastrup. H. A. QCD 20 Years Later: Aachen, June 9-13, 1992. World Scientific, 1993.