(1981). Recommended reference books for small and medium-sized libraries and media centers. Libraries Unlimited, Inc..
芝加哥风格引文Recommended Reference Books for Small and Medium-sized Libraries and Media Centers. Littleton, Colo.: Libraries Unlimited, Inc., 1981.
MLA引文Recommended Reference Books for Small and Medium-sized Libraries and Media Centers. Libraries Unlimited, Inc., 1981.
警告：这些引文格式不一定是100％准确.