Dyfyniad APA

Samuelson, P. A. &. o. (2010). Economics - 19th Edition. Tata Mc Graw Hill Education Pvt. Ltd.

Dyfyniad Arddull Chicago

Samuelson, Paul A. & others. Economics - 19th Edition. New Delhi: Tata Mc Graw Hill Education Pvt. Ltd, 2010.

Dyfyniad MLA

Samuelson, Paul A. & others. Economics - 19th Edition. Tata Mc Graw Hill Education Pvt. Ltd, 2010.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.