APA Style

Kilbey, L., White, L. (2012). New Challenges: Workbook 2 (cet. 1). New York: Pearson Longman Asia ELT.

MLA Style

Kilbey, Liz., White, Lindsay. "New Challenges: Workbook 2". cet. 1 New York: Pearson Longman Asia ELT, 2012. Buku SMP Athalia.