Duffy, D. G. (1986). Solutions of partial differential equations. Blue Ridge Summit, Pa.: Tab Professional and Reference Books.
Παραπομπή Chicago StyleDuffy, Dean G. Solutions of Partial Differential Equations. Blue Ridge Summit, Pa.: Tab Professional and Reference Books, 1986.
Παραπομπή MLADuffy, Dean G. Solutions of Partial Differential Equations. Blue Ridge Summit, Pa.: Tab Professional and Reference Books, 1986.
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