Center for Research and Communication. Business Economics Unit. (1976). Guidelines for the next five years. CRC.
Dyfyniad Arddull ChicagoCenter for Research and Communication. Business Economics Unit. Guidelines for the Next Five Years. [Manila]: CRC, 1976.
Dyfyniad MLACenter for Research and Communication. Business Economics Unit. Guidelines for the Next Five Years. CRC, 1976.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.