APA (7th ed.) Citation

Oller, J. W., & Perkins, K. (1980). Research in language testing. Newbury House.

Chicago Style (17th ed.) Citation

Oller, John W., and Kyle Perkins. Research in Language Testing. Rowley, MA: Newbury House, 1980.

MLA (9th ed.) Citation

Oller, John W., and Kyle Perkins. Research in Language Testing. Newbury House, 1980.