Heller,Robert, Johnson,Roy, Holden, R., Eaton,John, & Renshaw,Ben. (2008). Achieving excellence. Dorling Kindersley.
Cita Chicago Style (17a ed.)Heller,Robert, Johnson,Roy, Robert Holden, Eaton,John, y Renshaw,Ben. Achieving Excellence. London: Dorling Kindersley, 2008.
Cita MLA (8a ed.)Heller,Robert, et al. Achieving Excellence. Dorling Kindersley, 2008.
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