APA (7th ed.) Citation

American Society for Metals, Unterweiser, P. M., & Penzenik, M. (1979). Worldwide guide to equivalent irons and steels. American Society for Metals.

Chicago Style (17th ed.) Citation

American Society for Metals, Paul M. Unterweiser, and Marilyn Penzenik. Worldwide Guide to Equivalent Irons and Steels. Metals Park, Ohio: American Society for Metals, 1979.

MLA (9th ed.) Citation

American Society for Metals, et al. Worldwide Guide to Equivalent Irons and Steels. American Society for Metals, 1979.