APA (7th ed.) Citation

Müller, U., Wapnewski, P., & Deathridge, J. (1992). Wagner handbook. Harvard University Press.

Chicago Style (17th ed.) Citation

Müller, Ulrich, Peter Wapnewski, and John Deathridge. Wagner Handbook. Cambridge, Massachusets ; London: Harvard University Press, 1992.

MLA (9th ed.) Citation

Müller, Ulrich, et al. Wagner Handbook. Harvard University Press, 1992.