Tohutoro APA (7th ed.)

Ronningen, H. A. (1972). Metrics: Measurement for tomorrow. Collier.

Tohutoru Kātū Chicago (17th ed.)

Ronningen, Helmer A. Metrics: Measurement for Tomorrow. New York: Collier, 1972.

Tohutoro MLA (9th ed.)

Ronningen, Helmer A. Metrics: Measurement for Tomorrow. Collier, 1972.