MLA

Kopp, Achim. The Phonology of Pennsylvania German English As Evidence of Language Maintenance and Shift. Selinsgrove [Pa.]: Susquehanna University Press, 1999.

APA

Kopp, A. (1999). The phonology of Pennsylvania German English as evidence of language maintenance and shift. Selinsgrove [Pa.]: Susquehanna University Press.

Chicago

Kopp, Achim, The Phonology of Pennsylvania German English As Evidence of Language Maintenance and Shift. Selinsgrove [Pa.]: Susquehanna University Press, 1999.