Dial
Publication details: Georgetown Guyana Telecommunications Corporation 1981Description: 28cmDDC classification:- D4565
1981 - Issues no. 1 April ; nos. 2 - 4
1982 - Issues no. 1 - 4
1983 - Issues nos. 5 - 11
1984 - Issues nos. 12 January ; 13 June-July
1985 - Issues no. 14 - July ; no. 15 December
1986 - June
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