Cita APA (7th ed.)
Trager, G. L., & Smith, H. L. (1956). An outline of English structure. American Council of Learned Societies.
Cita Chicago (17th ed.)
Trager, George L., i Henry Lee Smith. An Outline of English Structure. Washington, D.C.: American Council of Learned Societies, 1956.
Cita MLA (9th ed.)
Trager, George L., i Henry Lee Smith. An Outline of English Structure. American Council of Learned Societies, 1956.
Atenció: Aquestes cites poden no estar 100% correctes.