Gaya APA

Diprima, W, E, B, R, C. (1986). Elementary Differential Equations and Boundary Value Problems (ed. 4). New York: John Willey & Sons.

Gaya MLA

Diprima, William, E., Boyce,, Richard, C.. "Elementary Differential Equations and Boundary Value Problems". ed. 4 New York: John Willey & Sons, 1986. Text.