APA (7th ed.) Citation

MacDougal, D. T., & Working, E. B. (1933). The pneumatic system of plants, especially trees. Carnegie institution of Washington.

Chicago Style (17th ed.) Citation

MacDougal, Daniel Trembly, and Earl Booth Working. The Pneumatic System of Plants, Especially Trees. Washington: Carnegie institution of Washington, 1933.

MLA (9th ed.) Citation

MacDougal, Daniel Trembly, and Earl Booth Working. The Pneumatic System of Plants, Especially Trees. Carnegie institution of Washington, 1933.

Warning: These citations may not always be 100% accurate.