This book is based upon countless interviews, endless correspon-dence, many in-depth personal investigations, and hundreds of books covering everything from alchemy to zoology.

The case studies developed for the Civic Library draw upon journalistic and academic accounts and interviews with key participants.

These text portraits are based upon interviews Marković performed with homeless men in various world capitals.

In addition to published sources, the research will draw upon health authority papers and upon interviews with key personnel in selected localities.

"We insist upon personal interviews with applicants, " she said.

Piers Paul Read's version was published two years after the rescue and was based upon interviews with the survivors.

Her evidence was based upon interviews conducted jointly by a social worker and a police officer.

Coughlin often seems to rely upon interviews with Iraqi exiles or opposition leaders in London.

Unterberger's books draw extensively upon first-hand interviews with musicians and their associates.