APA

Sawla A., Peters M., Yaniv S. & Mitchell R. (1991). Intercomparison of force standard machines of the National Institute of Standards and Technology, USA, and the Physikalisch-Technische Bundesanstalt, Germany. Braunschweig: Physikalisch-Technische Bundesanstalt.

Chicago

Sawla A, Peters M, Yaniv S and Mitchell R. 1991. Intercomparison of force standard machines of the National Institute of Standards and Technology, USA, and the Physikalisch-Technische Bundesanstalt, Germany. Braunschweig: Physikalisch-Technische Bundesanstalt.

Harvard

Sawla A., Peters M., Yaniv S. and Mitchell R. (1991). Intercomparison of force standard machines of the National Institute of Standards and Technology, USA, and the Physikalisch-Technische Bundesanstalt, Germany. Braunschweig: Physikalisch-Technische Bundesanstalt.

MLA

Sawla A, Peters M, Yaniv S and Mitchell R. Intercomparison of force standard machines of the National Institute of Standards and Technology, USA, and the Physikalisch-Technische Bundesanstalt, Germany. Braunschweig: Physikalisch-Technische Bundesanstalt. 1991.