WHO. (1996). Obstructed labour module. education material for teachers of midwifery. WHO.
Chicago-čujuhus (17. p.)WHO. Obstructed Labour Module. Education Material for Teachers of Midwifery. WHO, 1996.
MLA-čujuhus (9. p.)WHO. Obstructed Labour Module. Education Material for Teachers of Midwifery. WHO, 1996.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.