Comets and Meteors :
Kirkwood, Daniel
Comets and Meteors : Their phenomena in all ages; their mutual relations; and the theory of their origin. [electronic resource] / Daniel Kirkwood - Project Gutenberg, 2012 - Project Gutenberg 41606 .
Public domain in the USA.
Electronic text
Comets and Meteors : Their phenomena in all ages; their mutual relations; and the theory of their origin. [electronic resource] / Daniel Kirkwood - Project Gutenberg, 2012 - Project Gutenberg 41606 .
Public domain in the USA.
Electronic text