Cita APA (7th ed.)
Thouless, R. H., & Thouless, R. (2011). Straight and crooked thinking. Hodder Education.
Cita Chicago (17th ed.)
Thouless, R. H., i R.H Thouless. Straight and Crooked Thinking. London: Hodder Education, 2011.
Cita MLA (9th ed.)
Thouless, R. H., i R.H Thouless. Straight and Crooked Thinking. Hodder Education, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.