Tohutoro APA (7th ed.)
Ritter, A. (1882). Lehrbuch der Ingenieur-Mechanik: 2. Abdr.
Tohutoru Kātū Chicago (17th ed.)
Ritter, August. Lehrbuch Der Ingenieur-Mechanik: 2. Abdr. Leipzig, 1882.
Tohutoro MLA (9th ed.)
Ritter, August. Lehrbuch Der Ingenieur-Mechanik: 2. Abdr. 1882.
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