TY  - BOOK
AU  - Clark,John R.
TI  - Growth in arithmetic: discovery edition 
PY  - 1962///
CY  - New York
PB  - Harcourt, Brace & World, Inc.
UR  - http://www.archive.org/details/growthinarithmet04clar
UR  - http://www.openlibrary.org/books/OL24373800M
ER  -