Varney, h. Nurse-Midwifery. Blacwell Scientific Publications.
Chicago-čujuhus (17. p.)Varney, helen. Nurse-Midwifery. Blacwell Scientific Publications.
MLA-čujuhus (9. p.)Varney, helen. Nurse-Midwifery. Blacwell Scientific Publications.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.