Russell, D. S., & Collins, M. (1972). Elementary algebra (4th. ed.). Allyn and Bacon.
Cita Chicago Style (17a ed.)Russell, Donald S., y Michael Collins. Elementary Algebra. 4th. ed. Boston: Allyn and Bacon, 1972.
Cita MLA (8a ed.)Russell, Donald S., y Michael Collins. Elementary Algebra. 4th. ed. Allyn and Bacon, 1972.
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