Dyfyniad APA

BECKERMAN WILFRED. (1993). INTRODUCTION TO NATIONAL INCOME ANALYSIS (3.). UNIVERSAL BOOKS.

Dyfyniad Arddull Chicago

BECKERMAN WILFRED. INTRODUCTION TO NATIONAL INCOME ANALYSIS. 3. NEW DELHI: UNIVERSAL BOOKS, 1993.

Dyfyniad MLA

BECKERMAN WILFRED. INTRODUCTION TO NATIONAL INCOME ANALYSIS. 3. UNIVERSAL BOOKS, 1993.

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