How do I tell if my stephen king book is a first edition

It has a scale jacket in the hardcover of the book is a grayish white cloth with green boards. The inner paper is green.

On the copyright page it states first published in 1987 by Viking penguin Incorporated.

The book what if contain the price on the inner jacket but the previous owner cut it off. It does though contain the number at the bottom of the inner jacket which is 02182587.
Is this book a first addition and is it worth money?
Asked Mar 27, 2016

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