MLA

Schottenloher, M, J Ehlers, and K Hepp. A Mathematical Introduction to Conformal Field Theory. Springer Berlin Heidelberg, 2008.

APA

Schottenloher, M., Ehlers, J., & Hepp, K. (2008). A Mathematical Introduction to Conformal Field Theory. Springer Berlin Heidelberg.

Chicago

Schottenloher, M., J Ehlers, and K Hepp. A Mathematical Introduction to Conformal Field Theory. : Springer Berlin Heidelberg, 2008.