Hediger, H., Vevers, G., & Reade, W. Man and animal in the zoo: Zoo biology.
Chicago-čujuhus (17. p.)Hediger, Heini, Gwynne Vevers, juo Winwood Reade. Man and Animal in the Zoo: Zoo Biology.
MLA-čujuhus (9. p.)Hediger, Heini, et al. Man and Animal in the Zoo: Zoo Biology.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.