Grønvold, J. (1990). Transmission of infective larvae of Ostertagia ostertagi and Cooperia oncophora (Trichostrongylidae: Nematoda): Thesis. Commissioned by DSR Booksellers.
Lua i Stíl Chicago (17ú heag.)Grønvold, Jørn. Transmission of Infective Larvae of Ostertagia Ostertagi and Cooperia Oncophora (Trichostrongylidae: Nematoda): Thesis. Frederiksberg C, Denmark: Commissioned by DSR Booksellers, 1990.
Lua MLA (8ú heag.)Grønvold, Jørn. Transmission of Infective Larvae of Ostertagia Ostertagi and Cooperia Oncophora (Trichostrongylidae: Nematoda): Thesis. Commissioned by DSR Booksellers, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.