Cita APA (7th ed.)
Davidsen-Nielsen, N. (1990). Tense and mood in English: A comparison with Danish. Mouton de Gruyter.
Cita Chicago (17th ed.)
Davidsen-Nielsen, Niels. Tense and Mood in English: A Comparison with Danish. Berlin ; New York: Mouton de Gruyter, 1990.
Cita MLA (9th ed.)
Davidsen-Nielsen, Niels. Tense and Mood in English: A Comparison with Danish. Mouton de Gruyter, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.