Lennerstedt, I. (1973). Pads, furrows, and papillae in the foot of birds. [s.n.].
Lua i Stíl Chicago (17ú heag.)Lennerstedt, Ingvar. Pads, Furrows, and Papillae in the Foot of Birds. Lund: [s.n.], 1973.
Lua MLA (8ú heag.)Lennerstedt, Ingvar. Pads, Furrows, and Papillae in the Foot of Birds. [s.n.], 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.