Cita APA (7th ed.)

MURRELL, J. Valence theory. E.L.B.S. and Wiley.

Cita Chicago (17th ed.)

MURRELL, J.N. Valence Theory. London: E.L.B.S. and Wiley.

Cita MLA (9th ed.)

MURRELL, J.N. Valence Theory. E.L.B.S. and Wiley.