Patents for inventions: Abridgments of specifications ; Class 98, photography - periods through 1900. Arno.
Chicago-Zitierstil (17. Ausg.)Patents for Inventions: Abridgments of Specifications ; Class 98, Photography - Periods Through 1900. New York: Arno.
MLA-Zitierstil (9. Ausg.)Patents for Inventions: Abridgments of Specifications ; Class 98, Photography - Periods Through 1900. Arno.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.