APA (7th ed.) Citation

Tennyson, A. T., & Tennyson, C. (1931). Unpublished early poems. Macmillan.

Chicago Style (17th ed.) Citation

Tennyson, Alfred Tennyson, and Charles Tennyson. Unpublished Early Poems. London: Macmillan, 1931.

MLA (9th ed.) Citation

Tennyson, Alfred Tennyson, and Charles Tennyson. Unpublished Early Poems. Macmillan, 1931.