Welch, T. L. (1978). Subject Headings Employed in Research Libraries to Describe Bilingual and Bicultural Materials.
Citazione stile Chigago Style (17a edizione)Welch, Thomas L. Subject Headings Employed in Research Libraries to Describe Bilingual and Bicultural Materials. 1978.
Citatione MLA (9a ed.)Welch, Thomas L. Subject Headings Employed in Research Libraries to Describe Bilingual and Bicultural Materials. 1978.
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