Critchfield, H. J. (1978). Sunshine and solar radiation in Washington State. Office of the State Climatologist, Western Washington University.
Cita Chicago Style (17a ed.)Critchfield, Howard J. Sunshine and Solar Radiation in Washington State. Bellingham, Wash.: Office of the State Climatologist, Western Washington University, 1978.
Cita MLA (8a ed.)Critchfield, Howard J. Sunshine and Solar Radiation in Washington State. Office of the State Climatologist, Western Washington University, 1978.
Precaución: Estas citas no son 100% exactas.