Engel, H. (2009). Tragsysteme: = Structure systems (4. Aufl.). Hatje Cantz.
Chicago Style (17th ed.) CitationEngel, Heino. Tragsysteme: = Structure Systems. 4. Aufl. Ostfildern: Hatje Cantz, 2009.
MLA (9th ed.) CitationEngel, Heino. Tragsysteme: = Structure Systems. 4. Aufl. Hatje Cantz, 2009.
Warning: These citations may not always be 100% accurate.