Lua APA (7ú heag.)

Churchill, R. V. (1972). Operational mathematics. McGraw-Hill.

Lua i Stíl Chicago (17ú heag.)

Churchill, Ruel Vance. Operational Mathematics. Nueva York: McGraw-Hill, 1972.

Lua MLA (9ú heag.)

Churchill, Ruel Vance. Operational Mathematics. McGraw-Hill, 1972.

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