Citazione APA

Roberts, B. (1993). Biological weapons: Weapons of the future? 1993. Centre for strategic and International Studies.

Stile di citazione Chicago

Roberts, Brad. Biological Weapons: Weapons of the Future? 1993. Washington: Centre for strategic and International Studies, 1993.

Citazione MLA

Roberts, Brad. Biological Weapons: Weapons of the Future? 1993. Centre for strategic and International Studies, 1993.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.