Ledermann, A., & Trachsel, A. (1968). Playgrounds and recreation spaces / Alfred Ledermann and Alfred Trachsel (New and revised 2nd ed.). Architectural Press.
Chicago Style (17th ed.) CitationLedermann, Alfred, and Alfred Trachsel. Playgrounds and Recreation Spaces / Alfred Ledermann and Alfred Trachsel. New and revised 2nd ed. London: Architectural Press, 1968.
MLA (9th ed.) CitationLedermann, Alfred, and Alfred Trachsel. Playgrounds and Recreation Spaces / Alfred Ledermann and Alfred Trachsel. New and revised 2nd ed. Architectural Press, 1968.
Warning: These citations may not always be 100% accurate.