HENRY, S. (1969). Elementary mathematical economics. Routledge & Kegan Paul.
Chicago-čujuhus (17. p.)HENRY, S.G.B. Elementary Mathematical Economics. London: Routledge & Kegan Paul, 1969.
MLA-čujuhus (9. p.)HENRY, S.G.B. Elementary Mathematical Economics. Routledge & Kegan Paul, 1969.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.