Παραπομπή APA

Perry, D. J., & Devern J. Perry. South-Western spelling reference: 29,000+ words. Clifton Park: Cengage Learning, Inc.

Παραπομπή Chicago Style

Perry, Devern J., και Devern J. Perry. South-Western Spelling Reference: 29,000+ Words. Clifton Park: Cengage Learning, Inc.

Παραπομπή MLA

Perry, Devern J., και Devern J. Perry. South-Western Spelling Reference: 29,000+ Words. Clifton Park: Cengage Learning, Inc.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.