Center for Research and Communication. Business Economics Unit. (1976). Guidelines for the next five years. CRC.
Cita Chicago (17th ed.)Center for Research and Communication. Business Economics Unit. Guidelines for the Next Five Years. [Manila]: CRC, 1976.
Cita MLA (9th ed.)Center for Research and Communication. Business Economics Unit. Guidelines for the Next Five Years. CRC, 1976.
Atenció: Aquestes cites poden no estar 100% correctes.