APA (7th ed.) Citation

Allkofer, O. C., Dau, W., & Grupen, C. (1969). Spark chambers. K. Thiemig.

Chicago Style (17th ed.) Citation

Allkofer, O. C., Wolf-Dieter Dau, and Claus Grupen. Spark Chambers. Munchen: K. Thiemig, 1969.

MLA (9th ed.) Citation

Allkofer, O. C., et al. Spark Chambers. K. Thiemig, 1969.