Παραπομπή APA

Raju, S. K. V. S. (1987). Analysis of productivity levels and economic efficiency in agriculture. Chugh.

Παραπομπή Chicago Style

Raju, S. K. V. Suryanarayana. Analysis of Productivity Levels and Economic Efficiency in Agriculture. Allahabad: Chugh, 1987.

Παραπομπή MLA

Raju, S. K. V. Suryanarayana. Analysis of Productivity Levels and Economic Efficiency in Agriculture. Chugh, 1987.