Robert A. Heinlein (Box set)

Box set of Robert A. Heinlein paperbacks by Berkley books:

Time enough for Love (1973) Third printing

Starship Troopers (1968) 15th printing

The Moon is a Harsh Mistress (1968) 13th printing

I will fear no evil (1971) 9th printing

Glory Road (1970) 11th printing

Stranger in a strange land (1968) 32nd printing