L{circ}e, H. C. (2010). Selected problems of the Vietnamese Mathematical Olympiad (1962-2009). World Scientific.
Chicago Style (17th ed.) CitationL{circ}e, H©�ai Ch{circ}au. Selected Problems of the Vietnamese Mathematical Olympiad (1962-2009). Singapore: World Scientific, 2010.
MLA (9th ed.) CitationL{circ}e, H©�ai Ch{circ}au. Selected Problems of the Vietnamese Mathematical Olympiad (1962-2009). World Scientific, 2010.
Warning: These citations may not always be 100% accurate.