Sharma, J. N.. , Partial differential equations for engineers and scientists / J. N. Sharma, Kehar Singh. - 2nd ed. - xiv, 339 pages : illustrations ; 25 cm. ISBN: 1842654101 9781842654101 Subjects--Topical Terms: Differential equations, Partial --Textbooks. LC Class. No.: QA377 / .S52 2000