Lal, B. (1965). Industrial productivity & eco. growth. Chaitanya Pub. House.
Chicago-čujuhus (17. p.)Lal, B. Industrial Productivity & Eco. Growth. Allahabad: Chaitanya Pub. House, 1965.
MLA-čujuhus (9. p.)Lal, B. Industrial Productivity & Eco. Growth. Chaitanya Pub. House, 1965.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.