Feldman, R., & Babu, N. (2019). Child Development (8th.). Pearson.
Lua i Stíl Chicago (17ú heag.)Feldman, Robert, agus Nandita Babu. Child Development. 8th. Noida: Pearson, 2019.
Lua MLA (9ú heag.)Feldman, Robert, agus Nandita Babu. Child Development. 8th. Pearson, 2019.
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