APA (7th ed.) Zitazioa

(1963). A proposal concerning the general line of the: The letter. Foreign Language Pr.

Chicago Style (17th ed.) Zitazioa

A Proposal Concerning the General Line of the: The Letter. Peking: Foreign Language Pr, 1963.

MLA (9th ed.) Zitazioa

A Proposal Concerning the General Line of the: The Letter. Foreign Language Pr, 1963.