Intelligence - Nathan Brody, Erness Bright Brody - Google Books

http://books.google.de/books?id=Au2KHXQs2JUC&pg=PA306&lpg=PA306&dq=eyferth+studie+1961+ver%C3%B6ffentlicht+in&source=bl&ots=f8TB

This is the Second Edition of Nathan Brody's popular book Intelligence, originally published in 1976. It presents a comprehensive review of contemporary research in this field, including coverage of such controversial topics as the genetic and…