Lennerstedt, I. (1973). Pads, furrows, and papillae in the foot of birds. [s.n.].
Chicagoスタイル(17版)引用形式Lennerstedt, Ingvar. Pads, Furrows, and Papillae in the Foot of Birds. Lund: [s.n.], 1973.
MLA(8版)引用形式Lennerstedt, Ingvar. Pads, Furrows, and Papillae in the Foot of Birds. [s.n.], 1973.
警告: この引用は必ずしも正確ではありません.