Proceedings of the 1968 23rd ACM national conference. Association for Computing Machinery (ACM).
Tohutoru Kātū Chicago (17th ed.)Proceedings of the 1968 23rd ACM National Conference. Association for Computing Machinery (ACM).
Tohutoro MLA (9th ed.)Proceedings of the 1968 23rd ACM National Conference. Association for Computing Machinery (ACM).
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