Bureau, I. W. a. W. R. IWRB special publication. Slimbridge, Gloucester.
Chicago-stil citatBureau, International Waterfowl and Wetlands Research. IWRB Special Publication. Slimbridge, Gloucester.
MLA-referensBureau, International Waterfowl and Wetlands Research. IWRB Special Publication. Slimbridge, Gloucester.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.