APA (7e ed.) Bronvermelding

PARKER, J. (2001). Emma's problem.-- ed.1. McGraw-Hill Interamericana.

Chicago (17e ed.) Bronvermelding

PARKER, John. Emma's Problem.-- Ed.1. Mexico: McGraw-Hill Interamericana, 2001.

MLA (9e ed.) Bronvermelding

PARKER, John. Emma's Problem.-- Ed.1. McGraw-Hill Interamericana, 2001.