Walker, E. M. (1953). The Odonata of Canada and Alaska. The University of Toronto.
Lua i Stíl Chicago (17ú heag.)Walker, E. M. The Odonata of Canada and Alaska. [Toronto]: The University of Toronto, 1953.
Lua MLA (9ú heag.)Walker, E. M. The Odonata of Canada and Alaska. The University of Toronto, 1953.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.