por Sears, Francis Weston, 1898-1975 [autor].
por Sears, Francis Weston, 1898-1975 [autor] | Zemansky, Mark Waldo, 1900- [autor] | Yusta Almarza, Albino [traductor] | Sears, Francis Weston, 1898-1975. University physics.
por Sears, Francis Weston, 1898-1975 [autor] | Sears, Francis Weston, 1898-1975. Principles of physics | Yusta Almarza, Albino [traductor] | Bravo Gala, Luis [traductor].