Gaya APA
Luderer, B. et al
(2005).
Mathematical Formulas for Economists
(
2nd ed.)
.
Berlin, Heidelberg:
Springer.
Gaya MLA
Luderer, Bernd.. et al.
"Mathematical Formulas for Economists".
2nd ed.
Berlin, Heidelberg:
Springer,
2005.
E Book.