Gaya APA

Santayana, G., Swanson, C, P. (1961). Sense of beauty being the outline of aesthetic theory . New York: New York: Collier Books; 1961.

Gaya MLA

Santayana, George., Swanson, Carl, P.. "Sense of beauty being the outline of aesthetic theory". New York: New York: Collier Books; 1961, 1961. Text.