por Churchill, Ruel Vance, 1899- [autor] | Brown, James Ward [autor] | Abellanas Rapún, Lorenzo [traductor] | Churchill, Ruel Vance, 1899-. Complex variables and applications.
por Churchill, Ruel Vance, 1899- [autor] | Brown, James Ward [autor].
por Brown, James Ward [autor] | Churchill, Ruel Vance, 1899- [autor].