Isichei, A. O. (2014). Nitrogen in Savanna Grass and Litter.
Chicago-čujuhus (17. p.)Isichei, Augustine O. Nitrogen in Savanna Grass and Litter. 2014.
MLA-čujuhus (9. p.)Isichei, Augustine O. Nitrogen in Savanna Grass and Litter. 2014.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.