Citazione Stile APA (7a Edizione)

UNESCO, W. -. I. (1973). the role of snow and ice in hydrology. UNESCO.

Citazione stile Chigago Style (17a edizione)

UNESCO, Who - Iahs. The Role of Snow and Ice in Hydrology. Paris: UNESCO, 1973.

Citatione MLA (9a ed.)

UNESCO, Who - Iahs. The Role of Snow and Ice in Hydrology. UNESCO, 1973.