Não informado. (1968). Biological abstracts list of serials with title abbreviations. Biosciences Information Service of Biological Abstracts.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Biological Abstracts List of Serials with Title Abbreviations. Philadelphia, Pa: Biosciences Information Service of Biological Abstracts, 1968.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Biological Abstracts List of Serials with Title Abbreviations. Biosciences Information Service of Biological Abstracts, 1968.
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