GMG/5/1/4/1
gen No. 1 Volume 1
November 1970
GMG/5/1/4/4
gen No. 4 Volume 1
February 1971
GMG/5/1/4/6
gen No. 6 Volume 1
April 1971
GMG/5/1/4/8
gen No. 8 Volume 1
June 1971
GMG/5/1/4/9
gen No. 9 Volume 1
July 1971