Cunningham, F. G. (2011). Williams Obstetricia (23.ed.). Mc Graw Hill.
Chicago-čujuhus (17. p.)Cunningham, F. Gary. Williams Obstetricia. 23.ed. Mexico: Mc Graw Hill, 2011.
MLA-čujuhus (9. p.)Cunningham, F. Gary. Williams Obstetricia. 23.ed. Mc Graw Hill, 2011.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.