| Editor | Erich Fromm |
| Introduction by | Erich Fromm |
| Contributing Writer | Velko Korác, Ivan Sviták, Bogdan Suchodolski, Lucien Goldmann, Léopold Senghor, Mihailo Markovié, Herbert Marcuse, Eugene Kamenka, Umberto Cerroni, Adam Schaff, Milan Prucha, Karel Kosík, Marek Fritzhand, Bronislaw Baczko, Maximilien Rubel, Ernst Bloch, Erich Fromm, Iring Fetscher, Gajo Petrovié, Rudi Supek, Predrag Vranicki, Oskar Schatz, Ernst Florian Winter, Mathilde Niel, Norman Thomas, Wolfgang Abendroth, Richard M. Timuss, Tom Bottomore, Galvano Della Volpe |
| Publisher | Edições 70 |
| Translated by | Artur Morão |
| Copyright Holder (Original Edition) | Doubleday & Company, Inc. |
| Cover/Jacket Design by | João da Câmara Leme |
| Publisher Series | Biblioteca 70 |
| Printed by | Tipografia Lousanense, Lda |
| Format | Paperback |
| Language | Portuguese |
| Location | Portugal |
| Printed | 1976-04 |
| Pages / Font | 452 pages |
| Series Number | 25 |
Added by Xavier.Rafael