APA Citation

Chessbase GMBH. (2013). Mega database 2013. Hamburg, Alemania: ChessBase.

Chicago Style Citation

Chessbase GMBH. Mega Database 2013. Hamburg, Alemania: ChessBase, 2013.

MLA Citation

Chessbase GMBH. Mega Database 2013. Hamburg, Alemania: ChessBase, 2013.

Warning: These citations may not always be 100% accurate.