Practicing German :
a workbook designed to accompany the authors' German (revised edition), 1958 /
Helmut Rehder, Freeman Twaddell.
APA Citation
Rehder, H., Twaddell, W. F. (William Freeman). (1958). Practicing German: a workbook designed to accompany the authors' German (revised edition), 1958. New York: Holt.
MLA Citation
Rehder, Helmut, 1905-1977, and W. F. (William Freeman) Twaddell. Practicing German: a Workbook Designed to Accompany the Authors' German (revised Edition), 1958. New York: Holt, 1958.
Warning: These citations may not always be complete (especially for serials).