Dyfyniad APA

Cooper, D. R. S. (2010). Business Research Methods (11th.). Tata McGraw Hill.

Dyfyniad Arddull Chicago

Cooper, Donald R.; Schindler. Business Research Methods. 11th. NEw Delhi: Tata McGraw Hill, 2010.

Dyfyniad MLA

Cooper, Donald R.; Schindler. Business Research Methods. 11th. Tata McGraw Hill, 2010.

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