APA-čujuhus (7. p.)
ebrary, Inc, & Sackman, D. C. (2010). A companion to American environmental history. Wiley-Blackwell.
Chicago-čujuhus (17. p.)
ebrary, Inc, juo Douglas Cazaux Sackman. A Companion to American Environmental History. Chichester, West Sussex ; Malden, MA: Wiley-Blackwell, 2010.
MLA-čujuhus (9. p.)
ebrary, Inc, juo Douglas Cazaux Sackman. A Companion to American Environmental History. Wiley-Blackwell, 2010.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.