Sagan, Carl
Comet by Carl Sagan and Ann Druyan - 1st ed. - New york Random House 1985 - xiv, 396p.
0394549082
Comets
Halley's Comet
523.6 / SAG/1985
Comet by Carl Sagan and Ann Druyan - 1st ed. - New york Random House 1985 - xiv, 396p.
0394549082
Comets
Halley's Comet
523.6 / SAG/1985