APA (7th ed.) Citation

Roberts, D. (1987). Pipe & excavation contracting. Craftsman Book Co..

Chicago Style (17th ed.) Citation

Roberts, Dave. Pipe & Excavation Contracting. Carlsbad, CA: Craftsman Book Co., 1987.

MLA (9th ed.) Citation

Roberts, Dave. Pipe & Excavation Contracting. Craftsman Book Co., 1987.