Gage, N. L. (2009). A Conception of Teaching. Springer US. https://doi.org/10.1007/978-0-387-09446-5
Chicago-čujuhus (17. p.)Gage, Nathaniel L. A Conception of Teaching. Boston, MA: Springer US, 2009. https://doi.org/10.1007/978-0-387-09446-5.
MLA-čujuhus (9. p.)Gage, Nathaniel L. A Conception of Teaching. Springer US, 2009. https://doi.org/10.1007/978-0-387-09446-5.
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