Cita APA (7th ed.)

Bouma, L. (1973). The semantics of the modal auxiliaries in contemporary German. Mouton.

Cita Chicago (17th ed.)

Bouma, Lowell. The Semantics of the Modal Auxiliaries in Contemporary German. The Hague: Mouton, 1973.

Cita MLA (8th ed.)

Bouma, Lowell. The Semantics of the Modal Auxiliaries in Contemporary German. Mouton, 1973.