The case of the invisible dog a McGurk mystery Hildick, E. W. (Edmund Wallace) 1925- creator Weil, Lisl. text nyu New York Pocket Books 1978 monographic eng
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119 p. : ill. ; 18 cm. The McGurk Organization's four young detectives match wits with a nine-year-old scientific genius to unravel the mystery of the "invisible dog". by E.W. Hildick ; illustrated by Lisl Weil. 0671298917 9780671298913 77004466 http://www.archive.org/details/caseofinvisibled00hild http://www.openlibrary.org/books/OL24202825M http://www.archive.org/details/caseofinvisibled00hild http://www.openlibrary.org/books/OL24202825M UPM 810714 20230525154915.0 caseofinvisibled00hild