APA Style

GRAY, D, H., SOTIR, R, B. (1996). Biotechnical and soil bioengineering slope stabilization : a practical guide for erosion control (1). New York: .

MLA Style

GRAY, DONALD, H.., SOTIR, ROBBIN, B.. "Biotechnical and soil bioengineering slope stabilization : a practical guide for erosion control". 1 New York: , 1996. Text.