Gaya APA
Nickel, S., Puerto, J. (2005).
Location Theory: A Unified Approach With 116 Figures and 36 Tables (1st ed).
Berlin:
Springer-Verlag Berlin Heidelberg.
Gaya MLA
Nickel, Stefan., Puerto, Justo.
"Location Theory: A Unified Approach With 116 Figures and 36 Tables".
1st ed
Berlin:
Springer-Verlag Berlin Heidelberg,
2005.
PWK.