APA Citation

Allen, G., & Kallmann, F. J. (1955). Frequency and types of mental retardation in twins.

Citação norma Chicago

Allen, Gordon, and Franz J. Kallmann. Frequency and Types of Mental Retardation in Twins. 1955.

MLA Citation

Allen, Gordon, and Franz J. Kallmann. Frequency and Types of Mental Retardation in Twins. 1955.

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