Gaya APA

Matthiesen, S, J. (2011). Essential words for the toefl : test of english as a foreign language (5th.ed.). New York: Barron\'s Educational Series.

Gaya MLA

Matthiesen, Steven, J.. "Essential words for the toefl : test of english as a foreign language". 5th.ed. New York: Barron\'s Educational Series, 2011. Teks.