Santrock John W. (2019). Life Span Development (13th.). McGraw Hill.
Chicago-čujuhus (17. p.)Santrock John W. Life Span Development. 13th. McGraw Hill, 2019.
MLA-čujuhus (9. p.)Santrock John W. Life Span Development. 13th. McGraw Hill, 2019.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.