APA (7e ed.) Bronvermelding

SAMUELSON, P. A. (1967). Economics an introductory analysis. McGraw-Hill.

Chicago (17e ed.) Bronvermelding

SAMUELSON, Paul A. Economics an Introductory Analysis. New York: McGraw-Hill, 1967.

MLA (9e ed.) Bronvermelding

SAMUELSON, Paul A. Economics an Introductory Analysis. McGraw-Hill, 1967.