Silke Otto-Knapp : Present time exercise.

MLA

Cotter, Suzanne, and Jan Verwoert. Silke Otto-knapp : Present Time Exercise. Oxford: Koenig Books Ltd. London, 2009.

APA

Cotter, S., & Verwoert, J. (2009). Silke Otto-Knapp : Present time exercise. Oxford: Koenig Books Ltd. London.

Chicago

Cotter, Suzanne, and Jan Verwoert. Silke Otto-Knapp: Present Time Exercise. Oxford: Koenig Books Ltd. London, 2009.