Cita APA (7a ed.)

Eriksen, A. (1985). Playground design. Van Nostrand Reinhol.

Cita Chicago Style (17a ed.)

Eriksen, Aase. Playground Design. New York: Van Nostrand Reinhol, 1985.

Cita MLA (9a ed.)

Eriksen, Aase. Playground Design. Van Nostrand Reinhol, 1985.