Purcell, E. J. (1984). Calculus with analytic geometry (4th ed.). National Book Store.
Čikaški stil citiranja (17. izdanje)Purcell, Edwin J. Calculus with Analytic Geometry. 4th ed. Manila: National Book Store, 1984.
MLA način citiranja (9. izdanje)Purcell, Edwin J. Calculus with Analytic Geometry. 4th ed. National Book Store, 1984.
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