Cita APA (7th ed.)

Jeffrey M. Syken. (2002). Principles of trade estimating. Building News.

Cita Chicago (17th ed.)

Jeffrey M. Syken. Principles of Trade Estimating. Los Angeles: Building News, 2002.

Cita MLA (8th ed.)

Jeffrey M. Syken. Principles of Trade Estimating. Building News, 2002.