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VII, No. 1-5; No. 7-12 (1963); No. 2-12 (1964); No. 1-9/10 (1965); No. 1 /2, 5, 7/8-12 (1968); No. 1 /2, 7/8, 10, 12 (1969); No. 2, 3 /4, 7/8, 9 (1970).

May/June-December (1951); Jan.-March, June-December (1952); IV, No. 2-4, 6 (1953); XII, No. 6-8 (1961); XIII, No. 3-7/8 (1962); XIV, No. 1-7/8 (1963); XV, No. 1-8 (1964); XVI, No. 1-8 (1965); XVII, No. 1-7 (1966); XVIII, No. 1-3, 6 (1967);XIX, No. 1-6 (1968).