Ryan, L., & Norris, R. (2020). Chemistry For Cambridge International AS & A Level Coursebook (3rd.). Cambridge University Press.
Chicago-čujuhus (17. p.)Ryan, Lawrie, juo Roger Norris. Chemistry For Cambridge International AS & A Level Coursebook. 3rd. London: Cambridge University Press, 2020.
MLA-čujuhus (9. p.)Ryan, Lawrie, juo Roger Norris. Chemistry For Cambridge International AS & A Level Coursebook. 3rd. Cambridge University Press, 2020.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.