TY - BOOK T1 - Guide to certified rice seed production. T2 - It's Technical bulletin LA - English PP - College, Laguna PB - [s.n.] YR - 1959 UL - https://ds.mainlib.upd.edu.ph/Record/UP-99796217604487800 OP - 13 NO - Cover title. CN - S 539 P5 no.2 KW - Rice and rice culture : Philippines. ER -