Gaya APA

Verbrugge, J., Schroeder, C. (2018). GOETECHNICAL CORRELATIONS FOR SOILS AND ROCKS . London: John Wiley & Sons.

Gaya MLA

Verbrugge, J.C.., Schroeder, Christian. "GOETECHNICAL CORRELATIONS FOR SOILS AND ROCKS". London: John Wiley & Sons, 2018. Text.