APA (7th ed.) Citation

Laan, H. L. v. d. (1965). The Sierra Leone diamonds: An economic study covering the years 1952-1961. Oxford University Press.

Chicago Style (17th ed.) Citation

Laan, H. L. van der. The Sierra Leone Diamonds: An Economic Study Covering the Years 1952-1961. [London]: Oxford University Press, 1965.

MLA (8th ed.) Citation

Laan, H. L. van der. The Sierra Leone Diamonds: An Economic Study Covering the Years 1952-1961. Oxford University Press, 1965.