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1 gen 1950 anni - Ludwing von Bertalanffy Viena, Austria -1901-1972 Primer exponente de Teoría de los sistemas

Aggiunto al nastro di tempo:

especializacion

Byalexandra puentes
30 set 2019
0
0
701

Data:

1 gen 1950 anni
Adesso
~ 75 years ago

Immagini:

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