Cita APA

Coulson, C. (1961). Valence. English Language Book Society.

Chicago Edition Citation

Coulson, C.A. Valence. London: English Language Book Society, 1961.

Cita MLA

Coulson, C.A. Valence. English Language Book Society, 1961.

Atenció: Aquestes cites poden no estar 100% correctes.