World Of Science -

Parragon, Incorporated. Used - Very Good. Used book that is in excellent condition. May show signs of wear or have minor defects.

Parragon, Incorporated. Used - Good. Used book that is in clean, average condition without any missing pages.

Parragon, Incorporated. Used - Good. Former library book; may include library markings. Used book that is in clean, average condition without any missing pages.

Parragon, Incorporated. Used - Good. Used book that is in clean, average condition without any missing pages.

Parragon, Incorporated, 2007. Hardcover. Like New. Pages are clean and are not marred by notes or folds of any kind. ~ ThriftBooks: Read More, Spend Less.Dust jacket quality is not guaranteed.

Parragon, Incorporated, 2007. Hardcover. Acceptable. Disclaimer:A readable copy. All pages are intact, and the cover is intact. Pages can include considerable notes-in pen or highlighter-but the notes cannot obscure the text. At ThriftBooks, our motto is: Read More, Spend Less.Dust jacket quality is not guaranteed.

Parragon, Incorporated, 2007. Hardcover. Very Good. May have limited writing in cover pages. Pages are unmarked. ~ ThriftBooks: Read More, Spend Less.Dust jacket quality is not guaranteed.

Hardcover. USED - Fair. ink marks along text block edges, wear along front cover edge

Parragon Inc. Used - Very Good. Very Good condition. A copy that may have a few cosmetic defects. May also contain light spine creasing or a few markings such as an owner’s name, short gifter’s inscription or light stamp. Bundled media such as CDs, DVDs, floppy disks or access codes may not be included.

Parragon Inc. Used - Good. Good condition. A copy that has been read but remains intact. May contain markings such as bookplates, stamps, limited notes and highlighting, or a few light stains.