Willson, J. R., & Carrington, E. R. (1979). Obestetrics and gynecology (6th ed.). C.V. Mosby.
Chicago-čujuhus (17. p.)Willson, J. Robert, juo Elsie Reid Carrington. Obestetrics and Gynecology. 6th ed. St. Louis, Missouri: C.V. Mosby, 1979.
MLA-čujuhus (9. p.)Willson, J. Robert, juo Elsie Reid Carrington. Obestetrics and Gynecology. 6th ed. C.V. Mosby, 1979.
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