Block, P. (2009). Community: The structure of belonging. Berrett-Koehler.
Dyfyniad Arddull ChicagoBlock, Peter. Community: The Structure of Belonging. San Francisco: Berrett-Koehler, 2009.
Dyfyniad MLABlock, Peter. Community: The Structure of Belonging. Berrett-Koehler, 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.