Cita APA (7th ed.)
Working, E. B. The pneumatic System of plants, especially trees.
Cita Chicago (17th ed.)
Working, Earl Booth. The Pneumatic System of Plants, Especially Trees.
Cita MLA (9th ed.)
Working, Earl Booth. The Pneumatic System of Plants, Especially Trees.
Atenció: Aquestes cites poden no estar 100% correctes.