(1990). Steck-Vaughn GED exercise book: Writing skills, part two : the essay. Steck-Vaughn.
Chicago Style (17th ed.) CitationSteck-Vaughn GED Exercise Book: Writing Skills, Part Two : The Essay. Austin, Tex.: Steck-Vaughn, 1990.
MLA引文Steck-Vaughn GED Exercise Book: Writing Skills, Part Two : The Essay. Steck-Vaughn, 1990.
警告:這些引文格式不一定是100%准確.