APA (7th ed.) Citation

Burns, L. A. (2006). User manual for EXPRESS, the "EXAMS-PRZM exposure simulation shell" (Version 1.01.02.). U.S. Environmental Protection Agency, Office of Research and Development.

Chicago Style (17th ed.) Citation

Burns, Lawrence A. User Manual for EXPRESS, the "EXAMS-PRZM Exposure Simulation Shell". Version 1.01.02. Washington, DC: U.S. Environmental Protection Agency, Office of Research and Development, 2006.

MLA (9th ed.) Citation

Burns, Lawrence A. User Manual for EXPRESS, the "EXAMS-PRZM Exposure Simulation Shell". Version 1.01.02. U.S. Environmental Protection Agency, Office of Research and Development, 2006.