Pregill, P., & Volkman, N. (1993). Landscapes in history: Design and planning in the western tradition. Van Nostrand Reinhold.
Citace podle Chicago (17th ed.)Pregill, Philip, a Nancy Volkman. Landscapes in History: Design and Planning in the Western Tradition. New York: Van Nostrand Reinhold, 1993.
Citace podle MLA (9th ed.)Pregill, Philip, a Nancy Volkman. Landscapes in History: Design and Planning in the Western Tradition. Van Nostrand Reinhold, 1993.
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