@misc{1156681, author = {F E Roach}, title = {Absolute photometry of the light of the night sky::the zenith intensity of Haleakala (latitude N 20.7⁰) and at Fritz Peak (latitude N 39.9⁰)}, year = {1964}, month = {1964-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NBS.TN.214}, language = {en}, }