Lua APA (7ú heag.)

Campbell, S. L. V. (1982). Singular systems of differential equations II. Pitman Advanced Publishing Program.

Lua i Stíl Chicago (17ú heag.)

Campbell, Stephen La Vern. Singular Systems of Differential Equations II. Boston: Pitman Advanced Publishing Program, 1982.

Lua MLA (9ú heag.)

Campbell, Stephen La Vern. Singular Systems of Differential Equations II. Pitman Advanced Publishing Program, 1982.

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