APA
Punjab E. a. S. (., Punjab E. a. S. (., . (1972). Electricity statistics of Punjab, 1971-72. : .
Chicago
Punjab Economic and Statistical (Organisation), Punjab Economic and Statistical (Organisation), . 1972. Electricity statistics of Punjab, 1971-72. : .
Harvard
Punjab E. a. S. (., Punjab E. a. S. (., . (1972). Electricity statistics of Punjab, 1971-72. : .
MLA
Punjab Economic and Statistical (Organisation), Punjab Economic and Statistical (Organisation), . Electricity statistics of Punjab, 1971-72. : . 1972.
