Jubb, M. (2020). Upgrade your French. Routledge.
Chicago-čujuhus (17. p.)Jubb, Margaret. Upgrade Your French. Routledge, 2020.
MLA-čujuhus (9. p.)Jubb, Margaret. Upgrade Your French. Routledge, 2020.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.