APA
Barrack C. M., . (1998). Sievers' Law in Germanic. New York: Peter Lang Publishers.
Chicago
Barrack Charles M, . 1998. Sievers' Law in Germanic. New York: Peter Lang Publishers.
Harvard
Barrack C. M., . (1998). Sievers' Law in Germanic. New York: Peter Lang Publishers.
MLA
Barrack Charles M, . Sievers' Law in Germanic. New York: Peter Lang Publishers. 1998.