APA-viite (7. p.)

Wallis, E. (1950). Spanish adjective position: Phonetic stress and emphasis. s.n.

Chicago-viite (17. p.)

Wallis, Ethel. Spanish Adjective Position: Phonetic Stress and Emphasis. s.l: s.n, 1950.

MLA-viite (9. p.)

Wallis, Ethel. Spanish Adjective Position: Phonetic Stress and Emphasis. s.n, 1950.