Lua APA (7ú heag.)

Sneddon, I. N. (1957). Elements of partial differential equations. McGraw-Hill.

Lua i Stíl Chicago (17ú heag.)

Sneddon, Ian N. Elements of Partial Differential Equations. New York: McGraw-Hill, 1957.

Lua MLA (9ú heag.)

Sneddon, Ian N. Elements of Partial Differential Equations. McGraw-Hill, 1957.

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