Wharton School. Industrial Research Unit, Wharton School. Labor Relations Council, & Rowan, R. L. (1972). Collective bargaining: survival in the '70's?: Proceedings of a conference. Industrial Research Unit, Wharton School of Finance and Commerce, University of Pennsylvania; distributed by University of Pennsylvania Press.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিWharton School. Industrial Research Unit, Wharton School. Labor Relations Council, এবং Richard L. Rowan. Collective Bargaining: Survival in the '70's?: Proceedings of a Conference. Philadelphia, Pennysylvania: Industrial Research Unit, Wharton School of Finance and Commerce, University of Pennsylvania; distributed by University of Pennsylvania Press, 1972.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিWharton School. Industrial Research Unit, et al. Collective Bargaining: Survival in the '70's?: Proceedings of a Conference. Industrial Research Unit, Wharton School of Finance and Commerce, University of Pennsylvania; distributed by University of Pennsylvania Press, 1972.