APA (7th ed.) Citation

Winters, H. F., & Schweinfurth, C. (1956). SOME ADDITIONS TO THE ORCHID FLORA OF PUERTO RICO. Zenodo.

Chicago Style (17th ed.) Citation

Winters, Harold F., and Charles Schweinfurth. SOME ADDITIONS TO THE ORCHID FLORA OF PUERTO RICO. Zenodo, 1956.

MLA (9th ed.) Citation

Winters, Harold F., and Charles Schweinfurth. SOME ADDITIONS TO THE ORCHID FLORA OF PUERTO RICO. Zenodo, 1956.

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