APA (7th ed.) Citation

Seidenfaden, G. Contributions to the orchid flora of Thailand.

Chicago Style (17th ed.) Citation

Seidenfaden, Gunnar. Contributions to the Orchid Flora of Thailand. Copenhagen.

MLA (9th ed.) Citation

Seidenfaden, Gunnar. Contributions to the Orchid Flora of Thailand.

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