Sneddon, I. N. (1957). Elements of partial differential equations. McGraw-Hill.
Chicago-čujuhus (17. p.)Sneddon, Ian N. Elements of Partial Differential Equations. New York: McGraw-Hill, 1957.
MLA-čujuhus (9. p.)Sneddon, Ian N. Elements of Partial Differential Equations. McGraw-Hill, 1957.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.