APA

Robertson N, Sams K I, . (1972). British trade unionism. Vol. II : Select documents. Oxford: Basil Blackwell.

Chicago

Robertson N, Sams K I, . 1972. British trade unionism. Vol. II : Select documents. Oxford: Basil Blackwell.

Harvard

Robertson N, Sams K I, . (1972). British trade unionism. Vol. II : Select documents. Oxford: Basil Blackwell.

MLA

Robertson N, Sams K I, . British trade unionism. Vol. II : Select documents. Oxford: Basil Blackwell. 1972.