Bedny, G. Z., & Meister, D. (1997). The Russian theory of activity: Current applications to design and learning. L. Erlbaum.
Cita Chicago Style (17a ed.)Bedny, Gregory Z., y David Meister. The Russian Theory of Activity: Current Applications to Design and Learning. New Jersey: L. Erlbaum, 1997.
Cita MLA (8a ed.)Bedny, Gregory Z., y David Meister. The Russian Theory of Activity: Current Applications to Design and Learning. L. Erlbaum, 1997.
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