Perry, D. J. (2001). Spelling reference. Cincinnati, Ohio: South-Western/Thomson Learning.
Chicago ZitierstilPerry, Devern J. Spelling Reference. Cincinnati, Ohio: South-Western/Thomson Learning, 2001.
MLA ZitierstilPerry, Devern J. Spelling Reference. Cincinnati, Ohio: South-Western/Thomson Learning, 2001.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.