Boyce, R. R. (1978). The bases of economic geography (2nd ed.). Holt, Rinehart and Winston.
Chicago-čujuhus (17. p.)Boyce, Ronald R. The Bases of Economic Geography. 2nd ed. New York: Holt, Rinehart and Winston, 1978.
MLA-čujuhus (9. p.)Boyce, Ronald R. The Bases of Economic Geography. 2nd ed. Holt, Rinehart and Winston, 1978.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.