Stephani, H. (1989). Differential equations: Their solution using symmetries. Cambridge University Press.
استشهاد بنمط شيكاغوStephani, Hans. Differential Equations: Their Solution Using Symmetries. Cambridge [England] ; New York: Cambridge University Press, 1989.
MLA استشهادStephani, Hans. Differential Equations: Their Solution Using Symmetries. Cambridge University Press, 1989.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.