Helen Keller International. (2018). Suaahara II good nutrition program: Annual survey year one (2017).
Chicago Style aipamenaHelen Keller International. Suaahara II Good Nutrition Program: Annual Survey Year One (2017). 2018.
MLA aipamenaHelen Keller International. Suaahara II Good Nutrition Program: Annual Survey Year One (2017). 2018.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.