Turnkring Volharding Boom. (2013). Nieuwsbrief Turnkring Volharding Boom. Boom: Turnkring Volharding Boom.
Citazione stile Chigago Style (17a edizione)Turnkring Volharding Boom. Nieuwsbrief Turnkring Volharding Boom. Boom: Turnkring Volharding Boom, 2013.
Citatione MLA (8a ed.)Turnkring Volharding Boom. Nieuwsbrief Turnkring Volharding Boom. Boom: Turnkring Volharding Boom, 2013.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.