Dyfyniad APA

Ruff, H. A., Markowitz, M. E., Bijur, P. E., & Rosen, J. F. (1996). Relationships among blood lead levels, iron deficiency, and cognitive development in two-year-old children.

Dyfyniad Arddull Chicago

Ruff, H A., M E. Markowitz, P E. Bijur, and J F. Rosen. Relationships Among Blood Lead Levels, Iron Deficiency, and Cognitive Development in Two-year-old Children. 1996.

Dyfyniad MLA

Ruff, H A., M E. Markowitz, P E. Bijur, and J F. Rosen. Relationships Among Blood Lead Levels, Iron Deficiency, and Cognitive Development in Two-year-old Children. 1996.

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