Cita APA (7th ed.)
Heine, B. (1993). Auxiliaries: Cognitive forces and grammaticalization. Oxford University Press.
Cita Chicago (17th ed.)
Heine, Bernd. Auxiliaries: Cognitive Forces and Grammaticalization. New York: Oxford University Press, 1993.
Cita MLA (9th ed.)
Heine, Bernd. Auxiliaries: Cognitive Forces and Grammaticalization. Oxford University Press, 1993.
Atenció: Aquestes cites poden no estar 100% correctes.