Sonido, Davina G. Practical food preservation and processing : a practical guide for small businesses, hobyists and enthusiasts / Davina G. Sonido. - Mandaluyong City : National Book Store, 2010. - 241 p.: ill. 26 cm. Includes bibliographic references and index English ISBN: 971-08-6789-X LC Class. No.: 664.028 So58