Crowded orbits conflict and cooperation in space by Moltz, James Clay

Available for the University of the Philippines System via IG Library. Click here to access

Outer space politics and law by Vereshchetin, Vladlen Stephanovich

Space; a new direction for mankind. by Lindaman, Edward B.

Space probes and planetary exploration. by Corliss, William R.

Outer space in world politics by Goldsen, Joseph M., ed

The universe around us by Jeans, J.