Sargent, C. S. (1919). The Journal of the Arnold Arboretum. Zenodo.
Cita Chicago (17th ed.)Sargent, Charles Sprague. The Journal of the Arnold Arboretum. Zenodo, 1919.
Cita MLA (9th ed.)Sargent, Charles Sprague. The Journal of the Arnold Arboretum. Zenodo, 1919.
Atenció: Aquestes cites poden no estar 100% correctes.