APA

George E S, Jayasree K C, Karthikakuttyamma M & Mathew M. (1989). Effect of continuous application of nitrogenous fertilizer on sulphur status of soil. : Proceedings of the National Seminar on Sulphur in Agriculture, September 1989, Bangalore, pp. 57-63.

Chicago

George E S, Jayasree K C, Karthikakuttyamma M and Mathew M. 1989. Effect of continuous application of nitrogenous fertilizer on sulphur status of soil. : Proceedings of the National Seminar on Sulphur in Agriculture, September 1989, Bangalore, pp. 57-63.

Harvard

George E S, Jayasree K C, Karthikakuttyamma M and Mathew M. (1989). Effect of continuous application of nitrogenous fertilizer on sulphur status of soil. : Proceedings of the National Seminar on Sulphur in Agriculture, September 1989, Bangalore, pp. 57-63.

MLA

George E S, Jayasree K C, Karthikakuttyamma M and Mathew M. Effect of continuous application of nitrogenous fertilizer on sulphur status of soil. : Proceedings of the National Seminar on Sulphur in Agriculture, September 1989, Bangalore, pp. 57-63. 1989.