Foresman, S. (2000). Science: Student workbook, Grade K. Addison-Wesley Educational.
Chicago-čujuhus (17. p.)Foresman, Scott. Science: Student Workbook, Grade K. Glenview: Addison-Wesley Educational, 2000.
MLA-čujuhus (9. p.)Foresman, Scott. Science: Student Workbook, Grade K. Addison-Wesley Educational, 2000.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.