APA (7th ed.) Citation

Ruuth, J. W., Neovius, A., & Palmén, E. G. Cartes historiques. Geographical Society of Finland.

Chicago Style (17th ed.) Citation

Ruuth, J. W., Ad Neovius, and E. G. Palmén. Cartes Historiques. Geographical Society of Finland.

MLA (9th ed.) Citation

Ruuth, J. W., et al. Cartes Historiques. Geographical Society of Finland.

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