Koru, M. H., & Shultz, O. M. (1944). Tap, tap, zip. University of Florida Project in Applied Economics, Florida Curriculum Laboratory, College of Education.
Citace podle Chicago (17th ed.)Koru, Mary H., a Orlo M. Shultz. Tap, Tap, Zip. Gainesville, Fla.: University of Florida Project in Applied Economics, Florida Curriculum Laboratory, College of Education, 1944.
Citace podle MLA (8th ed.)Koru, Mary H., a Orlo M. Shultz. Tap, Tap, Zip. University of Florida Project in Applied Economics, Florida Curriculum Laboratory, College of Education, 1944.
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