How Did We Find Out About Comets

Avon Books. Very Good-. 1981. Paperback. 0380534541 . 4 oz.; 64 pages; VG- PB aged light shelf wear/fade card taped 1st end page story clean/tight. The phenomena of comets and astronomers' concepts about them are considered historically and in view of the present knowledge. .

Avon Books, 1981-02-01. Paperback. Good. 0.3000 in x 7.5000 in x 4.9000 in.

Avon Books (Mm). Good with no dust jacket. 1981. Paperback. 0380534541 . 7.50 X 4.90 X 0.30 inches .

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

Avon Books (Mm), 1981-02. Paperback. Good.

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

Avon Books, 1981-02-01. Paperback. Very Good. Prompt shipment, with tracking. we ship in CLEAN SECURE NEW boxes 2nd printing. Very good clean text

Avon Books, January 1981. Paper Back . 4.1 PB extra nice +5%.

1981. Paperback. Good. 1981 Paperback good+ condition cover creased top illustrated by David Wool Boxm ISBN: 0380534541.

Avon Books, 1981T. paperback. Acceptable. 0.3000 in x 7.5000 in x 4.9000 in. This is a used book. It may contain highlighting/underlining and/or the book may show heavier signs of wear . It may also be ex-library or without dustjacket.

Avon Books, 1981-02-01. Paperback. New. New. In shrink wrap. Looks like an interesting title!

New