Librería Samer Atenea
Librería Aciertas (Toledo)
Kálamo Books
Librería Perelló (Valencia)
Librería Elías (Asturias)
Donde los libros
Librería Kolima (Madrid)
Librería Proteo (Málaga)
Introduction, On Motion, On Force, On the properties of the centre of mass of a material system, On work and energy, Recapitulation, The Pendulum and Gravity, Universal Gravitation, On the Equations of Motion of a connected system, Appendix The relativity of the forces of nature, Appendix II The Principle of least action