Calvo & Waugh geoffrey. (1979). Micro economics: An introductory text. Tata McGraw Hill.
Dyfyniad Arddull ChicagoCalvo and Waugh geoffrey. Micro Economics: An Introductory Text. New Delhi: Tata McGraw Hill, 1979.
Dyfyniad MLACalvo and Waugh geoffrey. Micro Economics: An Introductory Text. Tata McGraw Hill, 1979.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.