Greene, H. W. (2013). Tracks and shadows: Field biology as art. University of California Press.
Chicago-čujuhus (17. p.)Greene, Harry W. Tracks and Shadows: Field Biology as Art. Berkeley: University of California Press, 2013.
MLA-čujuhus (9. p.)Greene, Harry W. Tracks and Shadows: Field Biology as Art. University of California Press, 2013.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.