APA (7th ed.) Citation

Sacker, H. D. (1963). An introduction to Wolfram's Parzival. University Press.

Chicago Style (17th ed.) Citation

Sacker, Hugh D. An Introduction to Wolfram's Parzival. Cambridge [England]: University Press, 1963.

MLA (9th ed.) Citation

Sacker, Hugh D. An Introduction to Wolfram's Parzival. University Press, 1963.