por Sears, Francis Weston, 1898-1975 [autor] | Zemansky, Mark Waldo, 1900- [autor] | Yusta Almarza, Albino [traductor] | Sears, Francis Weston, 1898-1975. University physics.
por Zemansky, Mark Waldo, 1900- [autor] | Van Ness, H. C. (Hendrick C.).