APA aipamena

León, J., & Collahua, Y. (2015). Technical note 33: The reliability and validity of achievement tests in the second Young Lives school survey in Ethiopia. Young Lives.

Chicago Style aipamena

León, J., and Y. Collahua. Technical Note 33: The Reliability and Validity of Achievement Tests in the Second Young Lives School Survey in Ethiopia. Young Lives, 2015.

MLA aipamena

León, J., and Y. Collahua. Technical Note 33: The Reliability and Validity of Achievement Tests in the Second Young Lives School Survey in Ethiopia. Young Lives, 2015.