APA aipamena

Robinson, D. (1987). Introduction to economics: A revision aid. ICSA Pub..

Chicago Style aipamena

Robinson, Derek. Introduction to Economics: A Revision Aid. Cambridge, Cambridgeshire, England ; Wolfeboro, N.H., USA: ICSA Pub., 1987.

MLA aipamena

Robinson, Derek. Introduction to Economics: A Revision Aid. ICSA Pub., 1987.