Robinson, D. S. (1968). Royce and Hocking: American idealists; an introduction to their philosophy, with selected letters. Christopher Pub. House.
Chicago-viite (17. p.)Robinson, Daniel Sommer. Royce and Hocking: American Idealists; an Introduction to Their Philosophy, with Selected Letters. Boston: Christopher Pub. House, 1968.
MLA-viite (8. p.)Robinson, Daniel Sommer. Royce and Hocking: American Idealists; an Introduction to Their Philosophy, with Selected Letters. Christopher Pub. House, 1968.
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