APA Citation

Kells, l. M. (1947). Elementary differential equations. New York: McGraw-Hill.

Trích dẫn kiểu Chicago

Kells, lyman M. Elementary Differential Equations. New York: McGraw-Hill, 1947.

MLA Citation

Kells, lyman M. Elementary Differential Equations. New York: McGraw-Hill, 1947.

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