APA (7th ed.) Citation

Koning, R. (1939). Pro Finlandia zegel. Zie: A27/547-55.

Chicago Style (17th ed.) Citation

Koning, Roeland. Pro Finlandia Zegel. Zie: A27/547-55. 1939.

MLA (8th ed.) Citation

Koning, Roeland. Pro Finlandia Zegel. Zie: A27/547-55. 1939.

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