Cita APA (7a ed.)
Velis, J. (1990). Through a glass, darkly: Functional illiteracy in industrialized countries.
Cita estilo Chicago (17a ed.)
Velis, Jean-Pierre. Through a Glass, Darkly: Functional Illiteracy in Industrialized Countries. 1990.
Cita MLA (9a ed.)
Velis, Jean-Pierre. Through a Glass, Darkly: Functional Illiteracy in Industrialized Countries. 1990.
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