APA-viite

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

Chicago-tyylinen lähdeviittaus

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

MLA-viite

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

Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.