TY  - BOOK
AU  - Sargent Jr, John F. 
AU  - Schwartz, R.X. 
ED  - Congressional Research Service
TI  - 3D Printing: : Overview, Impacts, and the Federal Role
T2  - Congressional Research Service
PY  - 2019///
PB  - Congressional Research Service
KW  - Imprenta
UR  - https://biblioteca.guardiacivil.es/cgi-bin/koha/opac-retrieve-file.pl?id=96d980f602f6db2799f56c94b33cf29c
ER  -