एपीए उद्धरण

Hecht, F., & Kaiser-McCaw, B. (1979). Down syndrome: Growing and learning.

शिकागो स्टाइल उद्धरण

Hecht, Frederick, और Barbara Kaiser-McCaw. Down Syndrome: Growing and Learning. 1979.

एमएलए उद्धरण

Hecht, Frederick, और Barbara Kaiser-McCaw. Down Syndrome: Growing and Learning. 1979.