(1889). O. P. Goerz's Momentapparat "Velox". Wilhelm Knapp.
Chicago Style (17th ed.) CitationO. P. Goerz's Momentapparat "Velox". Halle a.S: Wilhelm Knapp, 1889.
MLA (9th ed.) CitationO. P. Goerz's Momentapparat "Velox". Wilhelm Knapp, 1889.
Warning: These citations may not always be 100% accurate.