APA (7th ed.) Citation

United States. Bureau of Chemistry & Roark, R. C. (1926). Chloropicrin. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Bureau of Chemistry and R. C. Roark. Chloropicrin. Washington: [publisher not identified], 1926.

MLA (9th ed.) Citation

United States. Bureau of Chemistry and R. C. Roark. Chloropicrin. [publisher not identified], 1926.

Warning: These citations may not always be 100% accurate.