Warnar, G. (2007). Ruusbroec: Literature and mysticism in the fourteenth century. Brill.
Lua i Stíl Chicago (17ú heag.)Warnar, Geert. Ruusbroec: Literature and Mysticism in the Fourteenth Century. Leiden ; Boston: Brill, 2007.
Lua MLA (9ú heag.)Warnar, Geert. Ruusbroec: Literature and Mysticism in the Fourteenth Century. Brill, 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.