APA (7th ed.) Citation

Aarkrog, A., & Lippert, J. (1975). Environmental radioactivity in Denmark in 1974. Gjellerup.

Chicago Style (17th ed.) Citation

Aarkrog, A., and J. Lippert. Environmental Radioactivity in Denmark in 1974. Copenhagen: Gjellerup, 1975.

MLA (9th ed.) Citation

Aarkrog, A., and J. Lippert. Environmental Radioactivity in Denmark in 1974. Gjellerup, 1975.

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