APA (7th ed.) Citation

Koper, G. H. M., & Terpstra, M. (1991). Improving the properties of permanent magnets. A study of patents, patent applications and other literature ([1st ed.].). Elsevier Science Publishers.

Chicago Style (17th ed.) Citation

Koper, G. H. M., and Marten Terpstra. Improving the Properties of Permanent Magnets. A Study of Patents, Patent Applications and Other Literature. [1st ed.]. London: Elsevier Science Publishers, 1991.

MLA (9th ed.) Citation

Koper, G. H. M., and Marten Terpstra. Improving the Properties of Permanent Magnets. A Study of Patents, Patent Applications and Other Literature. [1st ed.]. Elsevier Science Publishers, 1991.