Gaya APA

Swanson, C, P. et al (1957). Vocational and practical arts education history, development, and ì principles . New York: New York: Harper & Row; 1957.

Gaya MLA

Swanson, Carl, P.. et al. "Vocational and practical arts education history, development, and ì principles". New York: New York: Harper & Row; 1957, 1957. Text.