Unknown. (2023). The naturalists directory. Samuel E. Cassino, U.S.A.
Chicago-čujuhus (17. p.)Unknown. The Naturalists Directory. Samuel E. Cassino, U.S.A, 2023.
MLA-čujuhus (9. p.)Unknown. The Naturalists Directory. Samuel E. Cassino, U.S.A, 2023.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.