Hodges, J. C., & Whitten, M. E. Harbrace college handbook (9th ed.).
Lua i Stíl Chicago (17ú heag.)Hodges, John Cunyus, agus Mary E. Whitten. Harbrace College Handbook. 9th ed.
Lua MLA (9ú heag.)Hodges, John Cunyus, agus Mary E. Whitten. Harbrace College Handbook. 9th ed.
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