APA-viite (7. p.)

PERKINS, D. (1964). Wordsworth and the poetry of sincerity. Harvard Univ. Pr..

Chicago-viite (17. p.)

PERKINS, David. Wordsworth and the Poetry of Sincerity. Cambridge, Mass.: Harvard Univ. Pr., 1964.

MLA-viite (9. p.)

PERKINS, David. Wordsworth and the Poetry of Sincerity. Harvard Univ. Pr., 1964.