Cosmos по Sagan, Carl 1934-

God and the astronomers по Jastrow, Robert 1925-

The search for life in the universe по Goldsmith, Donald

Cosmos по Sagan, Carl 1934-

Astronomical implications of the architecture at Casa Grande, Arizona, with relationships to MesoAmerica по Opperman, Renee

Black holes, quasars, and the universe по Shipman, Harry L.

Table of contents only

Cosmos по Sagan, Carl

Exploring the universe по Protheroe, W. M.

Introductory astronomy по Pananides, Nicholas A.

White dwarfs--black holes an introduction to relativistic astrophysics по Sexl, Roman Ulrich