Magnus, W., & Winkler, S. (1966). Hill's equation. Interscience Pub.
Lua i Stíl Chicago (17ú heag.)Magnus, Wilhelm, agus Stanley Winkler. Hill's Equation. New York: Interscience Pub, 1966.
Lua MLA (9ú heag.)Magnus, Wilhelm, agus Stanley Winkler. Hill's Equation. Interscience Pub, 1966.
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