APA citiranje

Zhen, H., McDermott, S., Lawson, A. B., & Aelion, C. M. (2009). Are clusters of mental retardation correlated with clusters of developmental delay? Geospat Health.

Citação norma Chicago

Zhen, Huiling, Suzanne McDermott, Andrew B. Lawson, and C. Marjorie Aelion. "Are Clusters of Mental Retardation Correlated With Clusters of Developmental Delay?" Geospat Health 2009.

MLA citiranje

Zhen, Huiling, Suzanne McDermott, Andrew B. Lawson, and C. Marjorie Aelion. "Are Clusters of Mental Retardation Correlated With Clusters of Developmental Delay?" Geospat Health 2009.