APA

Berztiss A. T., Association for Computing Machinery & ACM Special Interest Group on Computer Science Education. (1978). Proceedings of the ninth SIGCSE technical symposium on Computer science education. New York, NY: ACM.

Chicago

Berztiss Alfs T, Association for Computing Machinery and ACM Special Interest Group on Computer Science Education. 1978. Proceedings of the ninth SIGCSE technical symposium on Computer science education. New York, NY: ACM.

Harvard

Berztiss A. T., Association for Computing Machinery and ACM Special Interest Group on Computer Science Education. (1978). Proceedings of the ninth SIGCSE technical symposium on Computer science education. New York, NY: ACM.

MLA

Berztiss Alfs T, Association for Computing Machinery and ACM Special Interest Group on Computer Science Education. Proceedings of the ninth SIGCSE technical symposium on Computer science education. New York, NY: ACM. 1978.