Cita APA (7th ed.)

(2006). Age 2: Findings From the 2-Year-Old Follow-up of the Early Childhood Longitudinal Study, Birth Cohort. U.S. Department of Education.

Cita Chicago (17th ed.)

Age 2: Findings From the 2-Year-Old Follow-up of the Early Childhood Longitudinal Study, Birth Cohort. U.S. Department of Education, 2006.

Cita MLA (9th ed.)

Age 2: Findings From the 2-Year-Old Follow-up of the Early Childhood Longitudinal Study, Birth Cohort. U.S. Department of Education, 2006.