Hermann (EA advised author deceased and executor unknowm – a & c placed on hold awaiting estate to get in touch sf case 01944449) Mannheim 
Comparative Criminology [PDF ebook] 
A Textbook

This is Volume II of fifteen in a series on the Sociology of Law and Criminology. Originally published in 1965, this textbook is part two of two, meant for students and deals more fully than usual with such fundamental matters as the very concepts of crime and criminology and especially with the highly complex relationship between crime, the criminal law and certain burning moral issues of our time. It also includes several chapters on the methods of research used in criminological and penological investigations.