APA (7th ed.) Citation

Bullen, K. E. (1975). The Earth's Density. Springer Netherlands.

Chicago Style (17th ed.) Citation

Bullen, K. E. The Earth's Density. Dordrecht: Springer Netherlands, 1975.

MLA (9th ed.) Citation

Bullen, K. E. The Earth's Density. Springer Netherlands, 1975.