HOCHSCHILD, G. (1968). A second introduction to analytic geometry. Holden-day.
Lua i Stíl Chicago (17ú heag.)HOCHSCHILD, G. A Second Introduction to Analytic Geometry. San Francisco: Holden-day, 1968.
Lua MLA (9ú heag.)HOCHSCHILD, G. A Second Introduction to Analytic Geometry. Holden-day, 1968.
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