TY - BOOK ID - 126834887 TI - The making of index numbers : a study of their varieties, tests, and reliability PY - 1923 PB - Boston: Houghton Mifflin, DB - UniCat KW - Index numbers (Economics) UR - https://www.unicat.be/uniCat?func=search&query=sysid:126834887 AB - ER -