Complex sentence: His passport was confiscated in 1972 for a period of ten years; it was returned for one month in 1981, after pressure from German and American publishers for Randall to attend the Frankfurt Book Fair; it was returned in full in 1982.
Split into simpler sentences: His passport was confiscated in 1972 for a period of ten years. It was returned for one month in 1981, after pressure from German and American publishers for Randall to attend the Frankfurt Book Fair; it was returned in full in 1982.