Ebbitt, W. R., & Ebbitt, D. R. (1982). Writer's guide (7th ed.). Scott, Foresman.
Cita Chicago (17th ed.)Ebbitt, Wilma R., i David R. Ebbitt. Writer's Guide. 7th ed. Glenview, Ill: Scott, Foresman, 1982.
Cita MLA (9th ed.)Ebbitt, Wilma R., i David R. Ebbitt. Writer's Guide. 7th ed. Scott, Foresman, 1982.
Atenció: Aquestes cites poden no estar 100% correctes.