APA aipamena

William, W. (1980). Partial Differential Equations. Clarendon Press.

Chicago Style aipamena

William, W.E. Partial Differential Equations. Clarendon Press, 1980.

MLA aipamena

William, W.E. Partial Differential Equations. Clarendon Press, 1980.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.