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Barriers
Trade barriers to knowledge. A manual of re-
gulations affecting educational, scientific
and cultural materials. Prepared by the Divi-
sion of free flow of information. Department
of mass communications, Unesco. The information
on tariff and trade regulations was compiled
by the Intelligence unit of the Economist,
London.
8:o Paris 1951.

{
  "author": "",
  "location": "Paris",
  "title": "Trade barriers to knowledge. A manual of regulations affecting educational, scientific and cultural materials.",
  "year": "1951"
}

/Toweto
Barriers
Trade barriers to knowledge . A manual of re-
gulations affecting educational, scientific
and cultural materials. Prepared by the Divi-
sion of free flow of information. Department
of mass communications, Unesco. The informatioi
on tariff and trade regulations was compiled
by the Intelligence unit of the Economist,
London.
•	" Paris 1951.

{
  "author": "Division of free flow of information, Department of mass communications, Unesco",
  "location": "Paris",
  "title": "Barriers: Trade barriers to knowledge. A manual of regulations affecting educational, scientific and cultural materials.",
  "year": "1951"
}