Berry, B., Byrd, A., & Wieder, A. (2013). Teacherpreneurs: Innovative teachers who lead but don't leave. Jossey-Bass.
Dyfyniad Arddull ChicagoBerry, Barnett, Ann Byrd, and Alan Wieder. Teacherpreneurs: Innovative Teachers Who Lead but Don't Leave. San Francisco: Jossey-Bass, 2013.
Dyfyniad MLABerry, Barnett, et al. Teacherpreneurs: Innovative Teachers Who Lead but Don't Leave. Jossey-Bass, 2013.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.