QUADRENNIAL REPORT 1969-1973 OF THE SECRETARY GENERAL ING. CARLOS A. FORRAY ROJAS TO THE 10 PAIGH GENERAL ASSEMBLY.
Other titles: INFORME CUADRIENAL 1969-1973 DEL SECRETARIO GENERAL ING. CARLOS A. FORRAY ROJAS A LA 10 ASAMBLEA GENERAL DEL IPGH.