Cita APA

Unesco. Social Science Documentation Centre. (1990). World directory of social science institutions: Research, advanced training, documentation, professional bodies (5th ed.). Unesco.

Citación estilo Chicago

Unesco. Social Science Documentation Centre. World Directory of Social Science Institutions: Research, Advanced Training, Documentation, Professional Bodies. 5th ed. Paris: Unesco, 1990.

Cita MLA

Unesco. Social Science Documentation Centre. World Directory of Social Science Institutions: Research, Advanced Training, Documentation, Professional Bodies. 5th ed. Unesco, 1990.