Conferences and organizations series.
APA Citation
NO.10 Google 20080617., Pan American Union. Division of Conferences and Organizations. (1948). Conferences and organizations series. Washington.
MLA Citation
NO.10 Google 20080617, and Pan American Union. Division of Conferences and Organizations. Conferences And Organizations Series. Washington, 1948.
Warning: These citations may not always be complete (especially for serials).