APA (7th ed.) Citation
FAO, UNESCO, & UNESCO. (1974). Soil map of the world 1: 5.000.000. UNESCO.
Chicago Style (17th ed.) Citation
FAO, UNESCO, and UNESCO. Soil Map of the World 1: 5.000.000. UNESCO, 1974.
MLA (9th ed.) Citation
FAO, et al. Soil Map of the World 1: 5.000.000. UNESCO, 1974.
Warning: These citations may not always be 100% accurate.