Pyatt & Thorbocke Erik. (1976). Planning techniques for a better future. Oxford & IBH publishing company.
Dyfyniad Arddull ChicagoPyatt and Thorbocke Erik. Planning Techniques for a Better Future. New Delhi: Oxford & IBH publishing company, 1976.
Dyfyniad MLAPyatt and Thorbocke Erik. Planning Techniques for a Better Future. Oxford & IBH publishing company, 1976.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.