APA (7th ed.) Citation

Sheldrick, W. (1987). World Nitrogen Survey (1. Edisyon.). IBRD.

Chicago Style (17th ed.) Citation

Sheldrick, W.F. World Nitrogen Survey. 1. Edisyon. Washington: IBRD, 1987.

MLA (9th ed.) Citation

Sheldrick, W.F. World Nitrogen Survey. 1. Edisyon. IBRD, 1987.

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