APA (7th ed.) Citation

Metricaid, inc. (1979). Metricode: A consumer's guide to the metric system. [Protech Pub. Co.].

Chicago Style (17th ed.) Citation

Metricaid, inc. Metricode: A Consumer's Guide to the Metric System. [Place of publication not identified]: [Protech Pub. Co.], 1979.

MLA (9th ed.) Citation

Metricaid, inc. Metricode: A Consumer's Guide to the Metric System. [Protech Pub. Co.], 1979.