08/1983-08/1984
08/1983-08/1987
09/1983-08/1988
08/1983-08/1985
12/1983-08/1987
09/1983-08/1987
GEN=COSTARICA SPEC (8308- )LN5#,6#,RN5#,6#,YN50,51,52,55,57,58,6