APA

Hartmann W., Pennington K., . (2008). The history of medieval canon law in the classical period, 1140-1234. Washington, D.C: Catholic University of America Press.

Chicago

Hartmann Wilfried, Pennington Kenneth, . 2008. The history of medieval canon law in the classical period, 1140-1234. Washington, D.C: Catholic University of America Press.

Harvard

Hartmann W., Pennington K., . (2008). The history of medieval canon law in the classical period, 1140-1234. Washington, D.C: Catholic University of America Press.

MLA

Hartmann Wilfried, Pennington Kenneth, . The history of medieval canon law in the classical period, 1140-1234. Washington, D.C: Catholic University of America Press. 2008.