Vintage Stephen King Fire-starter & Different Seasons BOTMC very good condition

These books are both book of the month club books in very good vintage condition. fire-starter does not bear an external printed ISBN number. The number on the copyright page is 0-670-31541-9 - matches the first edition paperback. These book club editions were usually released by the publisher at the time of the original release and I’m guessing this was released by viking when the paperback was released. Different seasons bears multiple ISBN NUMBERS - one shows as first edition but has SOLD so I’m guessing another publishing house now has the rights …but thats just a guess Either way they are early editions and in very good condition. They cost less than trade first editions and way better than paperbacks (in my opinion) PLEASE DO NOT BUNDLE WITH ANY OTHER LISTINGS DUE TO WEIGHT RESTRICTIONS thanks for looking!