Two longitudinal studies of the abilities of people with Down's syndrome.

MLA

Shepperdson, B. “Two Longitudinal Studies of the Abilities of People with Down’s Syndrome.” Journal of Intellectual Disability Research : JIDR, vol. 39 ( Pt 5), Oct. 1995, pp. 419–31. EBSCOhost, https://doi.org/10.1111/j.1365-2788.1995.tb00546.x.

APA

Shepperdson, B. (1995). Two longitudinal studies of the abilities of people with Down’s syndrome. Journal of Intellectual Disability Research : JIDR, 39 ( Pt 5), 419–431. https://doi.org/10.1111/j.1365-2788.1995.tb00546.x

Chicago

Shepperdson, B. 1995. “Two Longitudinal Studies of the Abilities of People with Down’s Syndrome.” Journal of Intellectual Disability Research : JIDR 39 ( Pt 5) (October): 419–31. doi:10.1111/j.1365-2788.1995.tb00546.x.