APA-čujuhus (7. p.)
ROBERTO, K., & NELSON, R. (1989). THE DEVELOPMENTALLY DISABLED ELDERLY: CONCERNS OF SERVICE PROVIDERS. [s.n.].
Chicago-čujuhus (17. p.)
ROBERTO, K.A, juo R.E NELSON. THE DEVELOPMENTALLY DISABLED ELDERLY: CONCERNS OF SERVICE PROVIDERS. [s.l.]: [s.n.], 1989.
MLA-čujuhus (9. p.)
ROBERTO, K.A, juo R.E NELSON. THE DEVELOPMENTALLY DISABLED ELDERLY: CONCERNS OF SERVICE PROVIDERS. [s.n.], 1989.
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