Não informado. (1973). Children' s literature abstracts. Children' s Library Section. International Federation of Library.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Children' S Literature Abstracts. Birmingham, Inglaterra: Children' s Library Section. International Federation of Library, 1973.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Children' S Literature Abstracts. Children' s Library Section. International Federation of Library, 1973.
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