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Volume 13, No 1; October 1969, whole number 121
Volume 13, No 2; December 1969, whole number 122
Volume 13, No 3; February 1970, whole number 123
Volume 13, No 4; April 1970, whole number 124
Volume 13, No 5; June 1970, whole number 125
Volume 13, No 6; August 1970, whole number 126
Volume 13, No 7; October 1970, whole number 127
Volume 13, No 8; December 1970, whole number 128
Volume 13, No 9; April 1971, whole number 129
Volume 13, No 10; June 1971, whole number 130
Volume 13, No 11; August 1971, whole number 131
Volume 13, No 12; October 1971, whole number 132
Volume 13 - complete.
