APA (7th ed.) Citation

Longfellow, H. W., & Hilen, A. R. (1967). The letters of Henry Wadsworth Longfellow. Belknap Press of Harvard University Press.

Chicago Style (17th ed.) Citation

Longfellow, Henry Wadsworth, and Andrew R. Hilen. The Letters of Henry Wadsworth Longfellow. Cambridge: Belknap Press of Harvard University Press, 1967.

MLA (9th ed.) Citation

Longfellow, Henry Wadsworth, and Andrew R. Hilen. The Letters of Henry Wadsworth Longfellow. Belknap Press of Harvard University Press, 1967.