por Williams, Ralph Anthony David, 1938- [autor] | Elliot, James Cornelis, 1937- [autor].
por Williams, Ralph Anthony David, 1938 [autor] | Elliott, James Cornelis, 1937-.
por Williams, Ralph Anthony David, 1938- [autor] | Elliott, James [autor] | Orizaga Samperio, Jorge [traductor] | Williams, Ralph Anthony David, 1938-. Basic and applied dental biochemistry.