Cita APA (7th ed.)
Current thought. Vakils, Feffer and Simons Private.
Cita Chicago (17th ed.)
Current Thought. Bombay (India): Vakils, Feffer and Simons Private.
Cita MLA (9th ed.)
Current Thought. Vakils, Feffer and Simons Private.
Atenció: Aquestes cites poden no estar 100% correctes.