APA (7th ed.) Citation

Jonkman, L. (1970). An E.S.R. study of nitroxides.

Chicago Style (17th ed.) Citation

Jonkman, Leffert. An E.S.R. Study of Nitroxides. [Groningen, The Netherlands, 1970.

MLA (8th ed.) Citation

Jonkman, Leffert. An E.S.R. Study of Nitroxides. 1970.