TY  - SER
TI  - The world of learning
SN  - 0084-2117
PY  - 1947///-
CY  - London
PB  - Allen & Unwin
N1  - Published 1947-19 in London by G. Allen & Unwin; published 1947-2005 in London by Europa Publications; First ed. lacks numeric and chronological designations; Not published in 1949, 1951, 1953; Issued in two vols. for 2005
ER  -