APA (7th ed.) Citation

Sheldrick, W. F. (1984). World sulphur survey. The World Bank.

Chicago Style (17th ed.) Citation

Sheldrick, William F. World Sulphur Survey. The World Bank, 1984.

MLA (8th ed.) Citation

Sheldrick, William F. World Sulphur Survey. The World Bank, 1984.

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