APA
Kuhnlein H. V. (., Pelto G. H. (., . (1997). Culture, environment and food to prevent vitamin A deficienc. Ottawa: IDRC.
Chicago
Kuhnlein Harriet V (ed), Pelto Gretel H (ed), . 1997. Culture, environment and food to prevent vitamin A deficienc. Ottawa: IDRC.
Harvard
Kuhnlein H. V. (., Pelto G. H. (., . (1997). Culture, environment and food to prevent vitamin A deficienc. Ottawa: IDRC.
MLA
Kuhnlein Harriet V (ed), Pelto Gretel H (ed), . Culture, environment and food to prevent vitamin A deficienc. Ottawa: IDRC. 1997.