Cita APA (7th ed.)

Birnbaum, C. A., & Karson, R. S. (2000). Pioneers of American landscape design. McGraw Hill.

Cita Chicago (17th ed.)

Birnbaum, Charles A., i Robin S. Karson. Pioneers of American Landscape Design. New York: McGraw Hill, 2000.

Cita MLA (9th ed.)

Birnbaum, Charles A., i Robin S. Karson. Pioneers of American Landscape Design. McGraw Hill, 2000.