Παραπομπή APA

Cleveland, C. Better punctuation in 30 minutes a day. Franklin Lakes, NJ: The Career Press.

Παραπομπή Chicago Style

Cleveland, Ceil. Better Punctuation in 30 Minutes a Day. Franklin Lakes, NJ: The Career Press.

Παραπομπή MLA

Cleveland, Ceil. Better Punctuation in 30 Minutes a Day. Franklin Lakes, NJ: The Career Press.

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