This book contains a collection of essays in honor of Alan A. Block including his now classic study on the origins of IRAN-CONTRA. It brings together important contributions from Block's students and contemporaries to show the impact of his work on the field of global organized crime. Professor Alan A. Block of Penn State University has proven to be one of the most inspiring criminologists in the field.

1. 1. Why this essay? It is customary for the author on return migration to complain about the lack of theoretical and empirical knowledge on his sub- ject. Three recent general handbooks on the sociology of migra- tion Jackson (1969), Jansen (1970) and Albrecht (1972), pro- duce together no more than 10 sources on return migration. The by Mangalam (1968), although extensive migration bibliography giving no less than 2051 titles, still comes up with no more than 10 sources. I t is true that not so many books and articles are de- voted exclusively to return migration: Appleyard (1962a, 1962b),...

This book contains a collection of essays in honor of Alan A. Block including his now classic study on the origins of IRAN-CONTRA. It brings together important contributions from Block's students and contemporaries to show the impact of his work on the field of global organized crime. Professor Alan A. Block of Penn State University has proven to be one of the most inspiring criminologists in the field.