Cita APA (7th ed.)
Hemphill, G. (1973). A mathematical grammar of English. Mouton.
Cita Chicago (17th ed.)
Hemphill, George. A Mathematical Grammar of English. Hague, Netherlands: Mouton, 1973.
Cita MLA (9th ed.)
Hemphill, George. A Mathematical Grammar of English. Mouton, 1973.
Atenció: Aquestes cites poden no estar 100% correctes.