Martin, Douglas (11 de marzo de 2009). «Ralph Mercado, Impresario, Dies at 67». New York Times(en inglés). Consultado el 19 de diciembre de 2014. «Ralph Mercado, a promoter who took his passion for Latin music and built an empire around it, not only staging concerts but creating a recording and publishing label, a film and video company, and nightclubs and restaurants, died on Tuesday in Hackensack, N.J. He was 67. The cause was cancer, said Blanca Lasalle, a spokeswoman, who gave no other details. ...»
