Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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

Attenzione: Queste citazioni potrebbero non essere precise al 100%.