na INLIS000000000002001 20220718090900 0010-0722000017 ta 220718 g 0 eng 971-104-049-2 631.4 631.4 GOM t GOMEZ, Kwanchai A. Techniques for fild experiments with rice / Kwanchai A. Gomez Philippines : IRRI, 1972 48 p. : ill. ; 20 cm.