http://www.governmentattic.org/18docs/NORADhistSumms_1967-1974.pdf 71.6 MB Document Title # of Pages | Release Status# 1 NORAD Historical Summaries for Jan-Jun 1967 154 Full 2 NORAD Historical Summaries for Jul-Dec 1967 3 NORAD Historical Summaries for Jan-Jun 1968 286 Partial 4 NORAD Historical Summaries for Jul-Dec 1968 s NORAD Historical Summaries for Jan-Jun 1969 292 Partial 6 NORAD Historical Summaries for Jul-Dec 1969 7 NORAD Historical Summaries for Jan-Jun 1970 192 Partial 8 NORAD Historical Summaries for Jul-Dec 1970 9 NORAD Historical Summaries for Jan-Jun 1971 238 Partial 10 NORAD Historical Summaries for Jul-Dec 1971 11 NORAD Historical Summaries for Jan-Jun 1972 210 I Partial 12 NORAD Historical Summaries for Jul-Dec 1972 13 NORAD Historical Summaries for Jan-Jun 1973 UNK Refer to AFHRA 14 NORAD Historical Summaries for Jul-Dec 1973 15 NORAD Historical Summaries for Jan-Jun 1974 UNK Refer to AFHRA ' 16 NORAD Historical Summaries for Jul-Dec 1974 I