Gaya APA

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

Gaya MLA

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