American Library Association. Resources and Technical Services Division. Library resources & technical services. American Library Association].
Παραπομπή σε μορφή Chicago (17η εκδ.)American Library Association. Resources and Technical Services Division. Library Resources & Technical Services. [Chicago, etc.: American Library Association].
Παραπομπή σε μορφή MLA (8th εκδ.)American Library Association. Resources and Technical Services Division. Library Resources & Technical Services. American Library Association].
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