APA (7th ed.) Citation

Colorado. State planning commission & Colorado. State board of immigration. (1918). Year book of the State of Colorado. s.n.

Chicago Style (17th ed.) Citation

Colorado. State planning commission and Colorado. State board of immigration. Year Book of the State of Colorado. [Denver: s.n, 1918.

MLA (9th ed.) Citation

Colorado. State planning commission and Colorado. State board of immigration. Year Book of the State of Colorado. s.n, 1918.