Cita APA

Macnab, A., & Macnab, A. (2002). Earth retention systems. New York: McGraw-Hill.

Citación estilo Chicago

Macnab, Alan, y Alan Macnab. Earth Retention Systems. New York: McGraw-Hill, 2002.

Cita MLA

Macnab, Alan, y Alan Macnab. Earth Retention Systems. New York: McGraw-Hill, 2002.