Taylor, E. S. (1968). Obstetricia de Beck (8a. ed.). Interamericana.
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Tohutoru Kātū Chicago (17th ed.)
Taylor, E. Stewart. Obstetricia De Beck. 8a. ed. México: Interamericana, 1968.
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Tohutoro MLA (9th ed.)
Taylor, E. Stewart. Obstetricia De Beck. 8a. ed. Interamericana, 1968.
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