APA-čujuhus (7. p.)
Mansfield, E. (1968). The economics of technological change ([1st ed.].). W. W. Norton.
Chicago-čujuhus (17. p.)
Mansfield, Edwin. The Economics of Technological Change. [1st ed.]. New York: W. W. Norton, 1968.
MLA-čujuhus (9. p.)
Mansfield, Edwin. The Economics of Technological Change. [1st ed.]. W. W. Norton, 1968.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.