APA استشهاد

Robertson, N., & Thomas, J. (1968). Trade unions and industrial relations. Business books.

استشهاد بنمط شيكاغو

Robertson, N., و J.L Thomas. Trade Unions and Industrial Relations. London: Business books, 1968.

MLA استشهاد

Robertson, N., و J.L Thomas. Trade Unions and Industrial Relations. Business books, 1968.