(1971). An annotated bibliography of UNESCO publications and documents dealing witj space communication, 1953-1970. s.n.
芝加哥风格引文An Annotated Bibliography of UNESCO Publications and Documents Dealing Witj Space Communication, 1953-1970. Paris: s.n, 1971.
MLA引文An Annotated Bibliography of UNESCO Publications and Documents Dealing Witj Space Communication, 1953-1970. s.n, 1971.
警告：这些引文格式不一定是100％准确.