Gaya APA
Robbins, L. (1953).
The theory of economic policy in english classical political economy. (Repr) Oorspr. uitg. 1952 .
London:
Macmillan.
Gaya MLA
Robbins, L..
"The theory of economic policy in english classical political economy. (Repr) Oorspr. uitg. 1952 ".
London:
Macmillan,
1953.
Buku.