Sutherland Bridges, D., & Sutherland Bridges, D. (1974). Constructive mathematics - its set theory and practice.
Chicago-viite (17. p.)Sutherland Bridges, D., ja Douglas Sutherland Bridges. Constructive Mathematics - Its Set Theory and Practice. 1974.
MLA-viite (9. p.)Sutherland Bridges, D., ja Douglas Sutherland Bridges. Constructive Mathematics - Its Set Theory and Practice. 1974.
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