Gaya APA

Lodwick, W. (2008). Fuzzy surfaces in GIS and geographical analysis: theory, analytical methods, algorithms, and applications . Boca Raton: CRC Press.

Gaya MLA

Lodwick, Weldon. "Fuzzy surfaces in GIS and geographical analysis: theory, analytical methods, algorithms, and applications". Boca Raton: CRC Press, 2008. Text.