Παραπομπή σε μορφή APA (7η εκδ.)

SPENCE, W. P. (2011). Construction materials, methods, and techniques: Building for a sustainable future third edition. Cengage Lerning.

Παραπομπή σε μορφή Chicago (17η εκδ.)

SPENCE, William P. Construction Materials, Methods, and Techniques: Building for a Sustainable Future Third Edition. Cengage Lerning, 2011.

Παραπομπή σε μορφή MLA (8th εκδ.)

SPENCE, William P. Construction Materials, Methods, and Techniques: Building for a Sustainable Future Third Edition. Cengage Lerning, 2011.