Cita APA (7a ed.)

Say, M. G. (1971). Introduction to the unified theory of electromagnetic machines. Pitman Press.

Cita Chicago Style (17a ed.)

Say, M. G. Introduction to the Unified Theory of Electromagnetic Machines. London: Pitman Press, 1971.

Cita MLA (9a ed.)

Say, M. G. Introduction to the Unified Theory of Electromagnetic Machines. Pitman Press, 1971.