APA Citation

Karttunen, H., Kroger, P., Oja, H., Poutanen, M., & Donner, K. J. Fundamental astronomy.

Chicago Style Citation

Karttunen, Hannu, Pekka Kroger, Heikki Oja, Markku Poutanen, and Karl Johan Donner. Fundamental Astronomy.

MLA Citation

Karttunen, Hannu, et al. Fundamental Astronomy.

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