TY  - BOOK
AU  - Van Veen, Andre G
AU  - Van Veen, Marjorie Scott
ED  - Agency for International Development,., .
TI  - Vitamin a problems with special reference to less developed countries
CY  - Washington, DC
KW  - Blindness
KW  - Medicine
KW  - Vitamin A Difficiency
KW  - Vitamins
ER  -