APA-čujuhus (7. p.)
ebrary, Inc. (1989). Opportunities in biology. National Academy Press.
Chicago-čujuhus (17. p.)
ebrary, Inc. Opportunities in Biology. Washington: National Academy Press, 1989.
MLA-čujuhus (9. p.)
ebrary, Inc. Opportunities in Biology. National Academy Press, 1989.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.