APA (7th ed.) Citation

Douglass, A. E. (1919). Climatic cycles and tree-growth. Carnegie institution of Washington.

Chicago Style (17th ed.) Citation

Douglass, A. E. Climatic Cycles and Tree-growth. Washington: Carnegie institution of Washington, 1919.

MLA (9th ed.) Citation

Douglass, A. E. Climatic Cycles and Tree-growth. Carnegie institution of Washington, 1919.