MANOUGIAN, M. N. (1973). Ordinary differential equations: An introduction. Charles E. Merrill.
Lua i Stíl Chicago (17ú heag.)MANOUGIAN, Manoug N. Ordinary Differential Equations: An Introduction. Columbus, Ohio: Charles E. Merrill, 1973.
Lua MLA (9ú heag.)MANOUGIAN, Manoug N. Ordinary Differential Equations: An Introduction. Charles E. Merrill, 1973.
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