Borges, J. Ferry. <br/><br/>
Behaviour of tall buildings during the Caracas Earthquake o-f 1967 / J. Ferry Borges, J. Girases, A. Ravara. 

 - Lisboa, Portugal : Laboratorio Nacional de Engenharia Civil 
 - 14 p. 
 - Memoria; No.347 / Laboratorio Nacional de Engenharia Civil .