ORGEL, L. E. (1966). Introduction to transition. Methuen.
Cita Chicago (17th ed.)ORGEL, Leslie E. Introduction to Transition. London: Methuen, 1966.
Cita MLA (9th ed.)ORGEL, Leslie E. Introduction to Transition. Methuen, 1966.
Atenció: Aquestes cites poden no estar 100% correctes.