APA-referens (7:e uppl.)

Bogaard, J. (2000). New Happy Days 2. Interactive english (1a. ed.). Richmond Publishing.

Chicago-referens (17:e uppl.)

Bogaard, Jeannine. New Happy Days 2. Interactive English. 1a. ed. Buenos Aires: Richmond Publishing, 2000.

MLA-referens (9:e uppl.)

Bogaard, Jeannine. New Happy Days 2. Interactive English. 1a. ed. Richmond Publishing, 2000.