APA aipamena

Watson, N. J., Hutchinson, C. H., & Atta, H. R. (1995). Vitamin A deficiency and xerophthalmia in the United Kingdom. BMJ Group.

Chicago Style aipamena

Watson, N. J., C. H. Hutchinson, and H. R. Atta. Vitamin A Deficiency and Xerophthalmia in the United Kingdom. BMJ Group, 1995.

MLA aipamena

Watson, N. J., C. H. Hutchinson, and H. R. Atta. Vitamin A Deficiency and Xerophthalmia in the United Kingdom. BMJ Group, 1995.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.