Citazione Stile APA (7a Edizione)

Richek, M. A. (2014). The world of words: Vocabulary for college success (9th ed.). Wadsworth Cengage Learning.

Citazione stile Chigago Style (17a edizione)

Richek, Margaret Ann. The World of Words: Vocabulary for College Success. 9th ed. Australia: Wadsworth Cengage Learning, 2014.

Citatione MLA (9a ed.)

Richek, Margaret Ann. The World of Words: Vocabulary for College Success. 9th ed. Wadsworth Cengage Learning, 2014.