Παραπομπή APA

(2004). What you need to know about irregular verbs. Singapore: Learners Pub.

Παραπομπή Chicago Style

What You Need to Know About Irregular Verbs. Singapore: Learners Pub, 2004.

Παραπομπή MLA

What You Need to Know About Irregular Verbs. Singapore: Learners Pub, 2004.

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