Doll, R. C. (1974). Curriculum improvement: Decision making and process (3d ed.). Allyn and Bacon.
Chicago-čujuhus (17. p.)Doll, Ronald C. Curriculum Improvement: Decision Making and Process. 3d ed. Boston: Allyn and Bacon, 1974.
MLA-čujuhus (9. p.)Doll, Ronald C. Curriculum Improvement: Decision Making and Process. 3d ed. Allyn and Bacon, 1974.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.