APA (7e ed.) Bronvermelding

O´Kean, J. M. (2013). Econom{acute}ia. McGraw-Hill Espa{tilde}na.

Chicago (17e ed.) Bronvermelding

O´Kean, Jos{acute}e Mar{acute}ia. Econom{acute}ia. Madrid: McGraw-Hill Espa{tilde}na, 2013.

MLA (9e ed.) Bronvermelding

O´Kean, Jos{acute}e Mar{acute}ia. Econom{acute}ia. McGraw-Hill Espa{tilde}na, 2013.