@misc{Cordova1967, author = {C. Alejandro C{\´o}rdova}, title = {Review Ludwing, A. M.: >Altered States of Consciousness<}, booktitle = {Revista de Psicoan{\´a}lisis, Psiquiatr{\´i}a y Psicolog{\´i}a, M{\´e}xico (No. 6, 1967), pp. 86-87.}, type = {review}, year = {1967}, }