. . "1979-1990 Politics and government 1979-" . . "Central America." . . "Nicaragua Politics and government 1979-1990." . . . . . . . . . . . . . . . . "Turmoil in Central America : a special report" . . . . . . . . . "Turmoil in Central America" . . . . . "United States Foreign relations." . . "Nicaragua" . . "Central America" . . "Subversive activities Central America." . . "Since 1979" . . "United States" . .