APA (7th ed.) Citation

E.P.A. (1993). Manual nitrogen control. E.P.A.

Chicago Style (17th ed.) Citation

E.P.A. Manual Nitrogen Control. Cincinnati: E.P.A, 1993.

MLA (9th ed.) Citation

E.P.A. Manual Nitrogen Control. E.P.A, 1993.

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