APA Style

Regier, P, J. (1977). A Learner's Guide to the Old Church Slavic Language. Teil 1: Grammar with Exercises . Lausanne, Swiss (Switzerland): Peter Lang International Academic Publishing Group.

MLA Style

Regier, Philip, J.. "A Learner's Guide to the Old Church Slavic Language. Teil 1: Grammar with Exercises". Lausanne, Swiss (Switzerland): Peter Lang International Academic Publishing Group, 1977. Text.