APA (7th ed.) Citation

United States. Weather Bureau & Kimball, H. H. (1931). Pyrheliometers and pyrheliometric measurements; description of various pyrheliometers and auxiliary apparatus employed in measuring intensity of solar radiation, with instructions for their care and for reduction and use of records. U.S. GPO.

Chicago Style (17th ed.) Citation

United States. Weather Bureau and Herbert H. Kimball. Pyrheliometers and Pyrheliometric Measurements; Description of Various Pyrheliometers and Auxiliary Apparatus Employed in Measuring Intensity of Solar Radiation, with Instructions for Their Care and for Reduction and Use of Records. Washington: U.S. GPO, 1931.

MLA (9th ed.) Citation

United States. Weather Bureau and Herbert H. Kimball. Pyrheliometers and Pyrheliometric Measurements; Description of Various Pyrheliometers and Auxiliary Apparatus Employed in Measuring Intensity of Solar Radiation, with Instructions for Their Care and for Reduction and Use of Records. U.S. GPO, 1931.