APA (7th ed.) Citation

Moller, A. D. (1981). A study in the validation of proficiency tests of English as a foreign language.

Chicago Style (17th ed.) Citation

Moller, Alan D. A Study in the Validation of Proficiency Tests of English as a Foreign Language. 1981.

MLA (8th ed.) Citation

Moller, Alan D. A Study in the Validation of Proficiency Tests of English as a Foreign Language. 1981.

Warning: These citations may not always be 100% accurate.