1 "Ficheiro:Practice_and_theory_of_the_injector_(IA_practicetheory00knearich).pdf".

Ficheiro:Practice and theory of the injector (IA practicetheory00knearich).pdf

recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:Practice_and_theory_of_the_injector_(IA_practicetheory00knearich).pdf...