Kelsey, C., & Gray, H. (1986). The feasibility study process for parks and recreation. American Association for Leisure and Recreation.
Dyfyniad Arddull ChicagoKelsey, Craig, and Howard Gray. The Feasibility Study Process for Parks and Recreation. Reston, Va: American Association for Leisure and Recreation, 1986.
Dyfyniad MLAKelsey, Craig, and Howard Gray. The Feasibility Study Process for Parks and Recreation. American Association for Leisure and Recreation, 1986.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.