APA (7th ed.) Citation

Duguid, I. M., & Berry, A. A. (1981). Oftalmología elemental. Limusa.

Chicago Style (17th ed.) Citation

Duguid, Ian M., and Anne A. Berry. Oftalmología Elemental. México: Limusa, 1981.

MLA (9th ed.) Citation

Duguid, Ian M., and Anne A. Berry. Oftalmología Elemental. Limusa, 1981.

Warning: These citations may not always be 100% accurate.