Gaya APA

Sellin, Donald F.. (1979). Mental Retardation Nature Needs And Advocacy . Boston: Allyn and Bacon.

Gaya Chicago

Sellin, Donald F.. Mental Retardation Nature Needs And Advocacy. Boston: Allyn and Bacon, 1979. Buku Teks.

Gaya MLA

Sellin, Donald F.. Mental Retardation Nature Needs And Advocacy. Boston: Allyn and Bacon, 1979. Buku Teks.

Gaya Turabian

Sellin, Donald F.. Mental Retardation Nature Needs And Advocacy. Boston: Allyn and Bacon, 1979. Buku Teks.