एपीए उद्धरण

Walker, H. M. (1974). Elementary statistical methods. Oxford & IBH.

शिकागो स्टाइल उद्धरण

Walker, Helen M. Elementary Statistical Methods. New Delhi: Oxford & IBH, 1974.

एमएलए उद्धरण

Walker, Helen M. Elementary Statistical Methods. Oxford & IBH, 1974.