Gaya APA

Boyce, W, E., Diprima, R, C. (1977). Elemtary Differantial Equetions And Boundary Value Problems (3). New York: Jhon Wiley & Sions.

Gaya MLA

Boyce, William, E.., Diprima, Richard, C.. "Elemtary Differantial Equetions And Boundary Value Problems". 3 New York: Jhon Wiley & Sions, 1977. Text.