SPAET Colombia

Sociedad para la Promoción de la Artesanía y Ecología Tecnológica, Society for the Promotion of Handicraft and Eco-Technology

Three Essays
Thursday, December 31, 2020

For our friends and interested parties a warm greeting between the years: /Para nuestros amigos e interesadosun cordial saludo entre los años: 

3 Essays Booklet by Prof Norbert Pintsch

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