Marshall, G. Y. (1992). Teaching punctuation as an AID to clear and effective writing. Panamá: : Universidad.
Chicago Style CitationMarshall, Gloria Yanela. Teaching Punctuation As an AID to Clear and Effective Writing. Panamá: : Universidad, 1992.
MLA CitationMarshall, Gloria Yanela. Teaching Punctuation As an AID to Clear and Effective Writing. Panamá: : Universidad, 1992.
Warning: These citations may not always be 100% accurate.