Dyfyniad APA

Sneddon, I. N. Elements of partial differential equations. Mc Graw Hill.

Dyfyniad Arddull Chicago

Sneddon, Ian N. Elements of Partial Differential Equations. N. Delhi: Mc Graw Hill.

Dyfyniad MLA

Sneddon, Ian N. Elements of Partial Differential Equations. Mc Graw Hill.

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