Lado, R. (1970). Lado English series. In collaboration with John J. Staczek. : Simon and Schuster.
Cita Chicago Style (17a ed.)Lado, Robert. Lado English Series. In Collaboration with John J. Staczek. New York: : Simon and Schuster, 1970.
Cita MLA (9a ed.)Lado, Robert. Lado English Series. In Collaboration with John J. Staczek. : Simon and Schuster, 1970.
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