Crisafulli, A. S. A Bibliography of the Writings of Helmut A. Hatzfeld: Alessandro S. Crisafulli. Linguistic and literary studies : in honor of Helmut A. Hatzfeld.(1964).
Chicago-viite (17. p.)Crisafulli, Alessandro S. "A Bibliography of the Writings of Helmut A. Hatzfeld: Alessandro S. Crisafulli." Linguistic and Literary Studies : In Honor of Helmut A. Hatzfeld.(1964) .
MLA-viite (8. p.)Crisafulli, Alessandro S. "A Bibliography of the Writings of Helmut A. Hatzfeld: Alessandro S. Crisafulli." Linguistic and Literary Studies : In Honor of Helmut A. Hatzfeld.(1964), .
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