APA Style

Santayana, G. (2008). The letters of George Santayana. The Letters of George Santayana, Book Eight, 1948–1952: . Cambridge: MIT Press,.

MLA Style

Santayana, George,. "The letters of George Santayana. The Letters of George Santayana, Book Eight, 1948–1952:". Cambridge: MIT Press,, 2008. Text.