Παραπομπή APA

Ball, J. M. (1983). Systems of no linear partial differential equations [proceedings]. D Reidel.

Παραπομπή Chicago Style

Ball, J M. Systems of No Linear Partial Differential Equations [proceedings]. Dordrecht: D Reidel, 1983.

Παραπομπή MLA

Ball, J M. Systems of No Linear Partial Differential Equations [proceedings]. D Reidel, 1983.