Enger, E. D., & Ross, F. C. (2007). Laboratory manual concepts in biology (20th edición.). McGraw-Hill.
Chicago-čujuhus (17. p.)Enger, Eldon D., juo Frederick C. Ross. Laboratory Manual Concepts in Biology. 20th edición. Boston, MA: McGraw-Hill, 2007.
MLA-čujuhus (9. p.)Enger, Eldon D., juo Frederick C. Ross. Laboratory Manual Concepts in Biology. 20th edición. McGraw-Hill, 2007.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.