APA استشهاد

(1989). State domestic product 1980-81to 1987-88: New series-Base year 1980-81. State Income Devision Department of Economics&STATISTICS.

استشهاد بنمط شيكاغو

State Domestic Product 1980-81to 1987-88: New Series-Base Year 1980-81. Trivandrum: State Income Devision Department of Economics&STATISTICS, 1989.

MLA استشهاد

State Domestic Product 1980-81to 1987-88: New Series-Base Year 1980-81. State Income Devision Department of Economics&STATISTICS, 1989.