Cita APA (7th ed.)
Haiden, M. (2005). Theta theory. Mouton de Gruyter.
Cita Chicago (17th ed.)
Haiden, Martin. Theta Theory. Berlin ; New York: Mouton de Gruyter, 2005.
Cita MLA (9th ed.)
Haiden, Martin. Theta Theory. Mouton de Gruyter, 2005.
Atenció: Aquestes cites poden no estar 100% correctes.