APA (7th ed.) Citation

(1906). Parcels-post convention between U.S. and Republic of Peru. [publisher not identified].

Chicago Style (17th ed.) Citation

Parcels-post Convention Between U.S. and Republic of Peru. [Washington]: [publisher not identified], 1906.

MLA (9th ed.) Citation

Parcels-post Convention Between U.S. and Republic of Peru. [publisher not identified], 1906.