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PROP. DR JAN TINBERGEN

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THE HAGÜS, 17 February 1954
Sijzenlaan k^

Mr and Mrs Rafael Urrutia,
Cumhres de Acultzingo,
Lomas Altas,
Mexico i2iJ'«_

Dear Mr and Mrs Urrutia,
Often we are thinking of the
wonderful trip we raade with you during our
stay in Mexico, and we want to thank you once
more for all you did for us during that stay.
As a modest escpiression of our thanks we sent
you a little hook which is just out and gives
some picture about Holland. I hope you will
consider this as an expression of our gratitude as long as you have not decided to come to
Holland again. In that case v^ hope that we
will have the pleasure of seeing you with us and
of being permitted to show you some of the new
developments here.
With repeated thanks and
personal wishes,
yours very sincerely.

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