Lowther, Peter E., A. W; Diamond, Stephen W. Kress, Gregory J. Robertson and Keith Russell. Atlantic Puffin (Fratercula arctica). The Birds of North America Online (A. Poole, Ed.). Ithaca: Cornell Lab of Ornithology. 2002 [2009-04-01]. doi:10.2173/bna.709.引文使用过时参数coauthors (帮助)
Lowther, Peter E., A. W; Diamond, Stephen W. Kress, Gregory J. Robertson and Keith Russell. Atlantic Puffin (Fratercula arctica). The Birds of North America Online (A. Poole, Ed.). Ithaca: Cornell Lab of Ornithology. 2002 [2009-04-01]. doi:10.2173/bna.709.引文使用过时参数coauthors (帮助)