Gill, K., & Kruzas, A. T. (1982). International research centers directory: A world guide to government, university, independent nonprofit and commercial research and development centers, institutes, laboratories, bureaus, test facilities, experiment stations and data collections and analysis centers, as well as foundations, councils and other organizations which support research. Gale.
Chicago Style (17. basım) AtıfGill, Kay, ve Anthony Thomas Kruzas. International Research Centers Directory: A World Guide to Government, University, Independent Nonprofit and Commercial Research and Development Centers, Institutes, Laboratories, Bureaus, Test Facilities, Experiment Stations and Data Collections and Analysis Centers, as Well as Foundations, Councils and Other Organizations Which Support Research. Detroit: Gale, 1982.
MLA (9th ed.) AtıfGill, Kay, ve Anthony Thomas Kruzas. International Research Centers Directory: A World Guide to Government, University, Independent Nonprofit and Commercial Research and Development Centers, Institutes, Laboratories, Bureaus, Test Facilities, Experiment Stations and Data Collections and Analysis Centers, as Well as Foundations, Councils and Other Organizations Which Support Research. Gale, 1982.