Não informado. (1968). Biological abstracts list of serials with title abbreviations. Biosciences Information Service of Biological Abstracts.
Citação do estilo Chicago (17ª ed.)Não informado. Biological Abstracts List of Serials with Title Abbreviations. Philadelphia, Pa: Biosciences Information Service of Biological Abstracts, 1968.
Citação MLA (8ª ed.)Não informado. Biological Abstracts List of Serials with Title Abbreviations. Biosciences Information Service of Biological Abstracts, 1968.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.