PETERSON ROGER TONY. (1985). BIRDS. TIME LIFE BOOKS.
Chicago-čujuhus (17. p.)PETERSON ROGER TONY. BIRDS. HONGKONG: TIME LIFE BOOKS, 1985.
MLA-čujuhus (9. p.)PETERSON ROGER TONY. BIRDS. TIME LIFE BOOKS, 1985.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.