APA Style

Lougheed, L. (2012). Longman preparation series for the TOEIC test with answer key : Intermediate course. Fifth Edition (Fifth Edition). United States of America: Pearson.

MLA Style

Lougheed, Lin. "Longman preparation series for the TOEIC test with answer key : Intermediate course. Fifth Edition". Fifth Edition United States of America: Pearson, 2012. Text.