  1993 - Global Warming Unchecked Signs to Watch For (Paperback) → Hardcover ISBN-13: 9780253208194 ISBN-10: 025320819X Genres: Science & Math, Engineering & Transportation ?  1993 - Global Warming Unchecked Signs to Watch For (Hardcover) → Paperback ISBN-13: 9780253311788 ISBN-10: 0253311780 Genre: Science & Math ? |
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