Search for: Title Author Subject Series that begins with: 10 20 30 50 100 per page < Previous 10 Headings Next 10 Headings > Browse Headings # Biological warfare 19 SEE ALSO narrower term: Defoliants -- War use 1 Biological warfare agents 1 SEE: Biological weapons 16 SEE: Biological weapons 16 Biological warfare -- Asia. 1 Biological warfare -- China. 1 Biological warfare -- Comic books, strips, etc. 2 Biological warfare -- Drama. 4 Biological warfare -- Fiction. 21 Biological warfare -- France -- Safety measures. 1 Biological warfare -- Government policy -- United States. 1 Biological warfare -- Government policy -- United States -- Planning. 1 10 20 30 50 100 per page < Previous 10 Headings Next 10 Headings >