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Lua i Stíl Chicago (17ú heag.)Pfeiffer, Walter. Walter Pfeiffer (1970-1980). Frankfurt (Main): Betzel, 1980.
Lua MLA (8ú heag.)Pfeiffer, Walter. Walter Pfeiffer (1970-1980). Betzel, 1980.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.