Lua APA (7ú heag.)

LAURINI, R., & THOMPSON, D. (1993). Fundamentals of spatial information systems. Academic Press.

Lua i Stíl Chicago (17ú heag.)

LAURINI, Robert, agus Derek THOMPSON. Fundamentals of Spatial Information Systems. California: Academic Press, 1993.

Lua MLA (9ú heag.)

LAURINI, Robert, agus Derek THOMPSON. Fundamentals of Spatial Information Systems. Academic Press, 1993.

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