781 books • 167 series
Silk (Material World, #12) (Material World (Franklin Watts Paperback)) (Material World (Franklin Watts Hardcover))
Glass (Material World, #11) (Material World (Franklin Watts Paperback)) (Material World (Franklin Watts Hardcover))
Rubber (Material World, #7) (Material World (Franklin Watts Hardcover)) (Material World (Franklin Watts Paperback))