Scott Pegg 
International Society and the De Facto State [PDF ebook] 

Originally published in 1998, International Society and the De Facto Society explores the phenomenon of de facto statehood in contemporary international relations. The de facto state is almost the inverse of what Robert Jackson has termed the ‘quasi-state’. The quasi-state has an ambassador, a flag, and a seat at the United Nations, but it does not function positively as a viable governing entity. Its limitations though, do not detract from sovereign legitimacy. The de facto state, on the other hand, lacks legitimacy yet effectively controls a given territorial area and provides governmental services to a specific population. The book engages in a birth, life, and death or evolution examination of the de facto state.