Style de citation APA (7e éd.)

Lennerstedt, I. (1973). Pads, furrows, and papillae in the foot of birds. [s.n.].

Style de citation Chicago (17e éd.)

Lennerstedt, Ingvar. Pads, Furrows, and Papillae in the Foot of Birds. Lund: [s.n.], 1973.

Style de citation MLA (8e éd.)

Lennerstedt, Ingvar. Pads, Furrows, and Papillae in the Foot of Birds. [s.n.], 1973.