APA (7th ed.) Citation

Penfield, P. (1979). APL '79: Part 1 : Proceedings of the international conference on APL. Association for Computing Machinery.

Chicago Style (17th ed.) Citation

Penfield, Paul. APL '79: Part 1 : Proceedings of the International Conference on APL. New York: Association for Computing Machinery, 1979.

MLA (9th ed.) Citation

Penfield, Paul. APL '79: Part 1 : Proceedings of the International Conference on APL. Association for Computing Machinery, 1979.

Warning: These citations may not always be 100% accurate.