Bushong, J. G., & J. Gregory Bushong; Jane B. Wells. (1998). Bright Landscapes Incorporated. Cincinnati, Ohio: South-Western College Publishing.
Dyfyniad Arddull ChicagoBushong, J. Gregory, và J. Gregory Bushong; Jane B. Wells. Bright Landscapes Incorporated. Cincinnati, Ohio: South-Western College Publishing, 1998.
Dyfyniad MLABushong, J. Gregory, và J. Gregory Bushong; Jane B. Wells. Bright Landscapes Incorporated. Cincinnati, Ohio: South-Western College Publishing, 1998.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.