Editions and printings

• 1st printing · 1978
• 2nd printing · 1980
• 2nd edition, 2nd printing · 1984 · new price
• 3rd edition, 2nd printing · 1984 · new price
• 3rd printing · 1997
• 4th printing · 2006
• 2nd edition, 4th printing · 2006 · book club edition
• 3rd edition, 4th printing · 2009 · book club discount