Turk, J. (1989). Home study experiments to accompany Environmental Science (4th.). Harcourt Brace.
Chicago-čujuhus (17. p.)Turk, Jonathan. Home Study Experiments to Accompany Environmental Science. 4th. New York: Harcourt Brace, 1989.
MLA-čujuhus (9. p.)Turk, Jonathan. Home Study Experiments to Accompany Environmental Science. 4th. Harcourt Brace, 1989.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.