APA-čujuhus (7. p.)
Owen, O. S. (1980). Natural resource conservation: An ecological approach (3rd ed.). Macmillan.
Chicago-čujuhus (17. p.)
Owen, Oliver S. Natural Resource Conservation: An Ecological Approach. 3rd ed. London: Macmillan, 1980.
MLA-čujuhus (9. p.)
Owen, Oliver S. Natural Resource Conservation: An Ecological Approach. 3rd ed. Macmillan, 1980.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.