Cita APA

Postal, T. a. T. W. R. D., & Postal, T. a. T. W. R. D. (1900). An analysis of twenty five collective contracts in the postal, telephone, telecommnications & light and power fields in the Americas. [Lugar de publicación no identificado]: PTTI.

Citación estilo Chicago

Postal, Telegraph and Telephone Worker's. Research Department, y Telegraph and Telephone Worker's. Research Department Postal. An Analysis of Twenty Five Collective Contracts in the Postal, Telephone, Telecommnications & Light and Power Fields in the Americas. [Lugar de publicación no identificado]: PTTI, 1900.

Cita MLA

Postal, Telegraph and Telephone Worker's. Research Department, y Telegraph and Telephone Worker's. Research Department Postal. An Analysis of Twenty Five Collective Contracts in the Postal, Telephone, Telecommnications & Light and Power Fields in the Americas. [Lugar de publicación no identificado]: PTTI, 1900.