Search Results       Your search for [subject]Gregorio t. velasquez-works and accomplishment returned 1 record.           Challenge to biologists in the 70's: the escalation of food production. Quezon City: NRCP, 1973. Subject: Rice production; Poultry production; Seaweed; Food production; Fish production; Gregorio t. velasquez-works and accomplishment.          Add to Book Cart Relevance: 27.11%