Copyright protection in the Americas under national legislation and inter-American treaties.
- 2nd ed., rev. and enl. / by Manuel Canyes, Paul A. Colborn [and] Luis Guillermo Piazza. 2nd ed., rev. and enl. / by Manuel Canyes, Paul A. Colborn [and] Luis Guillermo Piazza.
- Washington : Division of Legal Affairs, Dept. of International Law and Organization, Pan American Union, 1950.
- Pan American Union. Law and treaty series, no. 33 .
First ed. issued by the Pan American Union Juridical Division.