Harmer, J., Adrian-Vallance, D., & Elsworth, S. (1987). Meridian. 3, Teacher's guide. Longman.
Chicago Style (17th ed.) CitationHarmer, Jeremy, D'Arcy Adrian-Vallance, and Steve Elsworth. Meridian. 3, Teacher's Guide. Harlow: Longman, 1987.
MLA (9th ed.) CitationHarmer, Jeremy, et al. Meridian. 3, Teacher's Guide. Longman, 1987.