Boletin mensual.

no.372-377 1975; no.378-383 1975; no.384-389 1976; no.390-395 1976; no.396-401 1977; no.402-407 1977; no.408-413 1978; no.414-419 1978; no.420-425 1979; no.426-431 1979; no.432-437 Enero-Junio 1980; no.438-443 Julio-Dic.1980; no.444-449 Enero-Junio 1981; no.450-455 Julio-Dic.1981; no.456-461 Enero-Junio 1982; no.462-467 Julio-Dic.1982; no.468-473 Enero-Junio 1983; no.474-479 Julio-Dic.1983; no.480-485 Enero-Junio 1984; no.486-491 1984; no.492-497 Enero-Junio 1985; no.492-497 1985; no.498-503 Julio-Dic.1985; no.504-509 Enero-Junio 1986; no.510-515 Julio-Dic.1986; no.516-521 Enero-Dic.1987; no.522-527 Julio-Dic.1987; no.528-533 Enero-Juin 1988; no.534-539 Jul.-Dic.1988 i; no.540-545 Enero-Junio 1989; no.546-551 Jul.-Dic.1989; no.552-557 Enero-Junio 1990; no.552-55 1990; no.556-559 1990; no.558-563 Jul.-Dic.1990; no.560-65 1990-91; no.564-569 Enero-Junio 1991; no.566-570 1991; no.570-575 jul.-dic.1991; no.571-575 1991; no.576-581 enero-jun.1992; no.576-581 1992; no.582-587 julio-dic. 1992; no.582-586 1992; no.599 1993 Dic.; no.599 1993; no.600-601 1994; no.605,607-610 1994; no.612-617 1995 Enero-Junio; no.616-619 1995; no.618-623 1995 Julio-Dic.; no.620-623 1995; no.624-629 1996; no.630-635 1996 msg. 635; no.630-635 1996; no.636-641 1997 Enero-Junio; no.636-641 1997; no.642-644 1997 Julio-Sept.; no.642-647 1997; no.648-653 1998; no.654- 655 1998; no.658- 659 1998; no.678 2000