APA (7th ed.) Citation

Pan American Union. (1921). Commerce of Costa Rica, latest reports from Costa Rican official sources. GPO.

Chicago Style (17th ed.) Citation

Pan American Union. Commerce of Costa Rica, Latest Reports from Costa Rican Official Sources. [Washington]: GPO, 1921.

MLA (9th ed.) Citation

Pan American Union. Commerce of Costa Rica, Latest Reports from Costa Rican Official Sources. GPO, 1921.

Warning: These citations may not always be 100% accurate.