Kessler, E., & Wilk, K. E. [. e. a. (1968). World meteorological organization international hydrological decade (IHD). World Meteorological Organization.
Citazione stile Chigago Style (17a edizione)Kessler, Edwin, e Kenneth Earl [ et al...] Wilk. World Meteorological Organization International Hydrological Decade (IHD). Geneva: World Meteorological Organization, 1968.
Citatione MLA (9a ed.)Kessler, Edwin, e Kenneth Earl [ et al...] Wilk. World Meteorological Organization International Hydrological Decade (IHD). World Meteorological Organization, 1968.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.