एपीए उद्धरण

(1987). Project summaries: FY 1987: Directorate for scientific, technological, and international affairs national science foundation. Washington.

शिकागो स्टाइल उद्धरण

Project Summaries: FY 1987: Directorate for Scientific, Technological, and International Affairs National Science Foundation. Washington, 1987.

एमएलए उद्धरण

Project Summaries: FY 1987: Directorate for Scientific, Technological, and International Affairs National Science Foundation. Washington, 1987.