एपीए उद्धरण

Leigh, R. B., & Liu, C. A. (2011). Hungarian problem book IV. Mathematical Association of America.

शिकागो स्टाइल उद्धरण

Leigh, Robert Barrington, और Chiang-Fung Andrew Liu. Hungarian Problem Book IV. [Washington, D.C.]: Mathematical Association of America, 2011.

एमएलए उद्धरण

Leigh, Robert Barrington, और Chiang-Fung Andrew Liu. Hungarian Problem Book IV. Mathematical Association of America, 2011.