Mackenzine, A. (1999). Instant Notes In Ecology. VivaBook.
Chicago-čujuhus (17. p.)Mackenzine, A. Instant Notes In Ecology. [s.l]: VivaBook, 1999.
MLA-čujuhus (9. p.)Mackenzine, A. Instant Notes In Ecology. VivaBook, 1999.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.