Notes: 1st ed. Presumable trade hardcover ISBN entered above, listed first by both library records. Cover image from Amazon US 2017-03-22 as "Hardcover", ISBN-10: 0030802385 (library binding); same image via Amazon UK as "Holt; Ex-library edition (1972)". LCCN: -- ISBN "0030802377 0030802385 (lib. bdg.)" (trade hc and library binding) -- Bibliography: p. 159-162 OCLC contains a list of Contents (6 sections) -- ISBN 0030802377 0030802385 7210005285 [the latter invalid?] Price from full review by Barbara Wersba NY Times 1972-04-02 pBR8 ("Ages 9 to 14" per publisher?, "miniature encyclopedia", extraordinarily positive) Cover artist is interior illustrator Bozzo, by examination of the image and reference to 1968 McHargue–Bozzo collaboration The Beasts of Never for which Locus identifies him as cover artist.