Proceedings of the 12th General Assembly /
held in Boulder, Colorado, U.S.A. from August 22nd to September 5th, 1957.
APA Citation
International Scientific Radio Union. (1957). Proceedings of the 12th General Assembly. Brussels: Secretary General of U.R.S.I..
MLA Citation
International Scientific Radio Union. Proceedings of the 12th General Assembly. Brussels: Secretary General of U.R.S.I., 1957.
Warning: These citations may not always be complete (especially for serials).