Agar Michael Ripping and running A formal ethnography of urban Heroin Addicts - New York Seminar Press 1973 - xiv, 173p cm. - Language , thought and Culture : Advances in the Study of Congition . Bibliography:P166-70. Appendix P 133-62; Index:P171-73 ISBN: 0128021500 Source: General Book Subjects--Topical Terms: Slums Dewey Class. No.: Y57:411.73N7, L3