{"source":"book","style":"apa","contributors": [{"function":"author","last":"Ferguson","first":"Kitty"} ],"pubtype": {"main": "pubnonperiodical"},"pubnonperiodical": {"title":"Stephen Hawking : quest for a theory of the universe","publisher":"F. Watts","city":"New York","year":"1991"},"datasource":"/z-wcorg/","datasource":"http://www.worldcat.org","oclc":"23769322","isbn":"0531110672 9780531110676"}