TY  - BOOK
AU  - Du Bois,William Pène
TI  - The twenty-one balloons,
AV  - PZ7.D8527 Tw
PY  - 1947///
CY  - New York
PB  - The Viking press
N1  - "First published ... April 1947."
UR  - http://www.archive.org/details/twentyoneballoon00dubo
UR  - http://www.openlibrary.org/books/OL6511356M
ER  -