APA

Potomac Institute for Policy Studies, Graham J. M. & Siegrist D. W. (1999). Countering biological terrorism in the U.S. an understanding of issues and status. Dobbs Ferry (Nueva York, Estados Unidos): Oceana Publications.

Chicago

Potomac Institute for Policy Studies, Graham Janice M and Siegrist David W. 1999. Countering biological terrorism in the U.S. an understanding of issues and status. Dobbs Ferry (Nueva York, Estados Unidos): Oceana Publications.

Harvard

Potomac Institute for Policy Studies, Graham J. M. and Siegrist D. W. (1999). Countering biological terrorism in the U.S. an understanding of issues and status. Dobbs Ferry (Nueva York, Estados Unidos): Oceana Publications.

MLA

Potomac Institute for Policy Studies, Graham Janice M and Siegrist David W. Countering biological terrorism in the U.S. an understanding of issues and status. Dobbs Ferry (Nueva York, Estados Unidos): Oceana Publications. 1999.