APA (7th ed.) Citation

Tomb, T. F., Mundell, R. L., & Jankowski, R. A. (1977). Comparison of respirable dust concentrations measured with personal gravimetric sampling instruments operated on-section and portal-to-portal. Dept. of the Interior, Mining Enforcement and Safety Administration.

Chicago Style (17th ed.) Citation

Tomb, Thomas F., R. Lindsay Mundell, and Robert A. Jankowski. Comparison of Respirable Dust Concentrations Measured with Personal Gravimetric Sampling Instruments Operated On-section and Portal-to-portal. [Arlington, Va.]: Dept. of the Interior, Mining Enforcement and Safety Administration, 1977.

MLA (9th ed.) Citation

Tomb, Thomas F., et al. Comparison of Respirable Dust Concentrations Measured with Personal Gravimetric Sampling Instruments Operated On-section and Portal-to-portal. Dept. of the Interior, Mining Enforcement and Safety Administration, 1977.