Bundle contains 6 books: 4 Bulletins + 2 Occasional Papers.

• Bulletin No. 3, 1971
• Bulletin No. 4, 1972
• Bulletin No. 5, 1973
• Bulletin No. 6, 1974
• Bulletin No. 8, 1976
• Occasional Paper No. 1
• Occasional Paper No. 2