APA (7th ed.) Citation

Aarkrog, A., & Lippert, J. (1958). Environmental radioactivity at Risö: April 1, 1957 - March 31, 1958. Gjellerup.

Chicago Style (17th ed.) Citation

Aarkrog, A., and J. Lippert. Environmental Radioactivity at Risö: April 1, 1957 - March 31, 1958. Copenhagen: Gjellerup, 1958.

MLA (9th ed.) Citation

Aarkrog, A., and J. Lippert. Environmental Radioactivity at Risö: April 1, 1957 - March 31, 1958. Gjellerup, 1958.

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