APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (9. p.)

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