R R BARTHWAL. (2022). Industrial economics: An introductory textbook (4.). NEW AGE INTERNATIONAL PUBLISHERS.
Chicago (17e ed.) BronvermeldingR R BARTHWAL. Industrial Economics: An Introductory Textbook. 4. New Delhi: NEW AGE INTERNATIONAL PUBLISHERS, 2022.
MLA (9e ed.) BronvermeldingR R BARTHWAL. Industrial Economics: An Introductory Textbook. 4. NEW AGE INTERNATIONAL PUBLISHERS, 2022.