Sayer, M. (2014). Life: Elementary. Teacher's Book (1a. ed.). National Geographic Learning.
Chicago-čujuhus (17. p.)Sayer, Mike. Life: Elementary. Teacher's Book. 1a. ed. Hampshire: National Geographic Learning, 2014.
MLA-čujuhus (9. p.)Sayer, Mike. Life: Elementary. Teacher's Book. 1a. ed. National Geographic Learning, 2014.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.