Osher Lifelong Learning Institutes. The LLI review. Osher Lifelong Learning Institute.
芝加哥风格引文Osher Lifelong Learning Institutes. The LLI Review. Portland, ME: Osher Lifelong Learning Institute.
MLA引文Osher Lifelong Learning Institutes. The LLI Review. Osher Lifelong Learning Institute.
警告：这些引文格式不一定是100％准确.