Güttgemanns, E. Fundamentals of a Grammar of Oral Literature: Ergardt Güttgemanns. Patterns in oral literature.(1977).
Lua i Stíl Chicago (17ú heag.)Güttgemanns, Ergardt. "Fundamentals of a Grammar of Oral Literature: Ergardt Güttgemanns." Patterns in Oral Literature.(1977) .
Lua MLA (8ú heag.)Güttgemanns, Ergardt. "Fundamentals of a Grammar of Oral Literature: Ergardt Güttgemanns." Patterns in Oral Literature.(1977), .
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.