User:AshNB15/Informal housing/Bibliography

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In the United States
Not only is informal housing seen in developing countries, but it also has its place in many countries. The United States has an informal economy, built around informal housing. Unpermitted second units can be identified as informal housing units. In 2012, Los Angeles, California is estimated to have close to 50,000 of the 462,000 single-family houses accompanied by informal housing units.