Zhitkova, A. S., Kaplun, S., & Ficklen, J. B. (1936). Some methods for the detection and estimation of poisonous gases and vapors in the air: A practical manual for the industrial hygienist. [publisher not identified].
Chicago Style (17th ed.) CitationZhitkova, A. S., S. Kaplun, and Joseph Burwell Ficklen. Some Methods for the Detection and Estimation of Poisonous Gases and Vapors in the Air: A Practical Manual for the Industrial Hygienist. [Hartford]: [publisher not identified], 1936.
MLA (9th ed.) CitationZhitkova, A. S., et al. Some Methods for the Detection and Estimation of Poisonous Gases and Vapors in the Air: A Practical Manual for the Industrial Hygienist. [publisher not identified], 1936.
Warning: These citations may not always be 100% accurate.