Cita APA (7th ed.)

Praagh, V. G., & Van Praagh, G. (1967). The discovery of the electric current. Published for the Nuffield Foundation by the Longmans/Penguin Books.

Cita Chicago (17th ed.)

Praagh, Van G., i Gordon Van Praagh. The Discovery of the Electric Current. London: Published for the Nuffield Foundation by the Longmans/Penguin Books, 1967.

Cita MLA (9th ed.)

Praagh, Van G., i Gordon Van Praagh. The Discovery of the Electric Current. Published for the Nuffield Foundation by the Longmans/Penguin Books, 1967.