ISO, & ISO. (1990). Solar energy-specification and classification of instruments for measuring hemispherical solar and direct solar radiation =: Énergie solaire-spécification et classification des instruments de mesurage du rayonnement solaire hémisphérique et direct (1. edition.). Geneva, Switzerland: ISO.
Chicago Style CitationISO, and ISO. Solar Energy-specification and Classification of Instruments for Measuring Hemispherical Solar and Direct Solar Radiation =: Énergie Solaire-spécification Et Classification Des Instruments De Mesurage Du Rayonnement Solaire Hémisphérique Et Direct. 1. edition. Geneva, Switzerland: ISO, 1990.
MLA CitationISO, and ISO. Solar Energy-specification and Classification of Instruments for Measuring Hemispherical Solar and Direct Solar Radiation =: Énergie Solaire-spécification Et Classification Des Instruments De Mesurage Du Rayonnement Solaire Hémisphérique Et Direct. 1. edition. Geneva, Switzerland: ISO, 1990.