1. Gleckman Howard , “A Rich Stew in the Melting Pot,” Business Week, 31 August 1998.
2. Behind the Sierra Club Vote on Curbing Immigration: Do Environmentalists Risk Alienating the Fastest-growing Ethnic Group in California?;HBA News,1998
3. Zuckerman Ben , “Will the Sierra Club Be Hurt If the Ballot Question Passes?” in Population and the Sierra Club: A Discussion of Issues About the Upcoming Referendum, ed. Kuper Alan , Schneider Dick , and Zuckerman Ben (1998)