Webster, A. G. (1966). Partial differential equations of mathematical physics (2a. ed.). Dover.
Chicago-čujuhus (17. p.)Webster, Arthur Gordon. Partial Differential Equations of Mathematical Physics. 2a. ed. Londres: Dover, 1966.
MLA-čujuhus (9. p.)Webster, Arthur Gordon. Partial Differential Equations of Mathematical Physics. 2a. ed. Dover, 1966.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.