Cita APA (7th ed.)

Spence, W. P., & Kultermann, E. (2011). Construction materials, methods and techniques: Building for a sustainable future (3rd ed.). Delmar, Cengage Learning.

Cita Chicago (17th ed.)

Spence, William Perkins, i Eva Kultermann. Construction Materials, Methods and Techniques: Building for a Sustainable Future. 3rd ed. Clifton Park, NY: Delmar, Cengage Learning, 2011.

Cita MLA (9th ed.)

Spence, William Perkins, i Eva Kultermann. Construction Materials, Methods and Techniques: Building for a Sustainable Future. 3rd ed. Delmar, Cengage Learning, 2011.