MLA

Schulitz, Helmut C., Werner Sobek, and Karl J Habermann. Steel Construction Manual. Basel: Birkhäuser, 2000.

APA

Schulitz, H. C., Sobek, W., & Habermann, K. J. (2000). Steel construction manual. Basel: Birkhäuser.

Chicago

Schulitz, Helmut C., Werner Sobek, and Karl J. Habermann. Steel Construction Manual. Basel: Birkhäuser, 2000.