SHEPHERD, J. F. (1987). College vocabulary skills.-- Ed.3. Houghton Mifflin.
芝加哥风格引文SHEPHERD, James F. College Vocabulary Skills.-- Ed.3. Boston: Houghton Mifflin, 1987.
MLA引文SHEPHERD, James F. College Vocabulary Skills.-- Ed.3. Houghton Mifflin, 1987.
警告：这些引文格式不一定是100％准确.