Análisis de la Impresión del Número 3 de WMB 3D, Edición Collector's Print | Nick Saglimbeni
What Are Printing Plates? | PrintRunner Blog
Printing cmyk marks. Offset print calibration marks, gradient color tone, color bars and registration plates. Color printing standard vector Stock Vector Image & Art - Alamy
4 colour process printing – what you need to know
Printing Plates - How Are They Made? - PrintNinja.com
CMYK vs Spot Color Separation
Spot Color vs Full Color Printing: What's the Difference? | Wisconsin Converting, Inc.
What do printing plates actually look like? - Design Resources